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http_config_test.go
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http_config_test.go
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// Copyright 2015 The Prometheus 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 config
import (
"context"
"crypto/tls"
"crypto/x509"
"encoding/json"
"errors"
"fmt"
"io"
"net"
"net/http"
"net/http/httptest"
"net/url"
"os"
"path/filepath"
"reflect"
"strconv"
"strings"
"sync"
"sync/atomic"
"testing"
"time"
yaml "gopkg.in/yaml.v2"
)
const (
TLSCAChainPath = "testdata/tls-ca-chain.pem"
ServerCertificatePath = "testdata/server.crt"
ServerKeyPath = "testdata/server.key"
ClientCertificatePath = "testdata/client.crt"
ClientKeyNoPassPath = "testdata/client.key"
InvalidCA = "testdata/client.key"
WrongClientCertPath = "testdata/self-signed-client.crt"
WrongClientKeyPath = "testdata/self-signed-client.key"
EmptyFile = "testdata/empty"
MissingCA = "missing/ca.crt"
MissingCert = "missing/cert.crt"
MissingKey = "missing/secret.key"
ExpectedMessage = "I'm here to serve you!!!"
ExpectedError = "expected error"
AuthorizationCredentials = "theanswertothegreatquestionoflifetheuniverseandeverythingisfortytwo"
AuthorizationCredentialsFile = "testdata/bearer.token"
AuthorizationType = "APIKEY"
BearerToken = AuthorizationCredentials
BearerTokenFile = AuthorizationCredentialsFile
MissingBearerTokenFile = "missing/bearer.token"
ExpectedBearer = "Bearer " + BearerToken
ExpectedAuthenticationCredentials = AuthorizationType + " " + BearerToken
ExpectedUsername = "arthurdent"
ExpectedPassword = "42"
ExpectedAccessToken = "12345"
)
var invalidHTTPClientConfigs = []struct {
httpClientConfigFile string
errMsg string
}{
{
httpClientConfigFile: "testdata/http.conf.bearer-token-and-file-set.bad.yml",
errMsg: "at most one of bearer_token & bearer_token_file must be configured",
},
{
httpClientConfigFile: "testdata/http.conf.empty.bad.yml",
errMsg: "at most one of basic_auth, oauth2, bearer_token & bearer_token_file must be configured",
},
{
httpClientConfigFile: "testdata/http.conf.basic-auth.too-much.bad.yaml",
errMsg: "at most one of basic_auth password & password_file must be configured",
},
{
httpClientConfigFile: "testdata/http.conf.basic-auth.bad-username.yaml",
errMsg: "at most one of basic_auth username & username_file must be configured",
},
{
httpClientConfigFile: "testdata/http.conf.mix-bearer-and-creds.bad.yaml",
errMsg: "authorization is not compatible with bearer_token & bearer_token_file",
},
{
httpClientConfigFile: "testdata/http.conf.auth-creds-and-file-set.too-much.bad.yaml",
errMsg: "at most one of authorization credentials & credentials_file must be configured",
},
{
httpClientConfigFile: "testdata/http.conf.basic-auth-and-auth-creds.too-much.bad.yaml",
errMsg: "at most one of basic_auth, oauth2 & authorization must be configured",
},
{
httpClientConfigFile: "testdata/http.conf.basic-auth-and-oauth2.too-much.bad.yaml",
errMsg: "at most one of basic_auth, oauth2 & authorization must be configured",
},
{
httpClientConfigFile: "testdata/http.conf.auth-creds-no-basic.bad.yaml",
errMsg: `authorization type cannot be set to "basic", use "basic_auth" instead`,
},
{
httpClientConfigFile: "testdata/http.conf.oauth2-secret-and-file-set.bad.yml",
errMsg: "at most one of oauth2 client_secret & client_secret_file must be configured",
},
{
httpClientConfigFile: "testdata/http.conf.oauth2-no-client-id.bad.yaml",
errMsg: "oauth2 client_id must be configured",
},
{
httpClientConfigFile: "testdata/http.conf.oauth2-no-client-secret.bad.yaml",
errMsg: "either oauth2 client_secret or client_secret_file must be configured",
},
{
httpClientConfigFile: "testdata/http.conf.oauth2-no-token-url.bad.yaml",
errMsg: "oauth2 token_url must be configured",
},
{
httpClientConfigFile: "testdata/http.conf.proxy-from-env.bad.yaml",
errMsg: "if proxy_from_environment is configured, proxy_url must not be configured",
},
{
httpClientConfigFile: "testdata/http.conf.no-proxy.bad.yaml",
errMsg: "if proxy_from_environment is configured, no_proxy must not be configured",
},
{
httpClientConfigFile: "testdata/http.conf.no-proxy-without-proxy-url.bad.yaml",
errMsg: "if no_proxy is configured, proxy_url must also be configured",
},
}
func newTestServer(handler func(w http.ResponseWriter, r *http.Request)) (*httptest.Server, error) {
testServer := httptest.NewUnstartedServer(http.HandlerFunc(handler))
tlsCAChain, err := os.ReadFile(TLSCAChainPath)
if err != nil {
return nil, fmt.Errorf("Can't read %s", TLSCAChainPath)
}
serverCertificate, err := tls.LoadX509KeyPair(ServerCertificatePath, ServerKeyPath)
if err != nil {
return nil, fmt.Errorf("Can't load X509 key pair %s - %s", ServerCertificatePath, ServerKeyPath)
}
rootCAs := x509.NewCertPool()
rootCAs.AppendCertsFromPEM(tlsCAChain)
testServer.TLS = &tls.Config{
Certificates: make([]tls.Certificate, 1),
RootCAs: rootCAs,
ClientAuth: tls.RequireAndVerifyClientCert,
ClientCAs: rootCAs}
testServer.TLS.Certificates[0] = serverCertificate
testServer.StartTLS()
return testServer, nil
}
func TestNewClientFromConfig(t *testing.T) {
var newClientValidConfig = []struct {
clientConfig HTTPClientConfig
handler func(w http.ResponseWriter, r *http.Request)
}{
{
clientConfig: HTTPClientConfig{
TLSConfig: TLSConfig{
CAFile: "",
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: true},
},
handler: func(w http.ResponseWriter, r *http.Request) {
fmt.Fprint(w, ExpectedMessage)
},
}, {
clientConfig: HTTPClientConfig{
TLSConfig: TLSConfig{
CAFile: TLSCAChainPath,
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
},
handler: func(w http.ResponseWriter, r *http.Request) {
fmt.Fprint(w, ExpectedMessage)
},
}, {
clientConfig: HTTPClientConfig{
BearerToken: BearerToken,
TLSConfig: TLSConfig{
CAFile: TLSCAChainPath,
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
},
handler: func(w http.ResponseWriter, r *http.Request) {
bearer := r.Header.Get("Authorization")
if bearer != ExpectedBearer {
fmt.Fprintf(w, "The expected Bearer Authorization (%s) differs from the obtained Bearer Authorization (%s)",
ExpectedBearer, bearer)
} else {
fmt.Fprint(w, ExpectedMessage)
}
},
}, {
clientConfig: HTTPClientConfig{
BearerTokenFile: BearerTokenFile,
TLSConfig: TLSConfig{
CAFile: TLSCAChainPath,
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
},
handler: func(w http.ResponseWriter, r *http.Request) {
bearer := r.Header.Get("Authorization")
if bearer != ExpectedBearer {
fmt.Fprintf(w, "The expected Bearer Authorization (%s) differs from the obtained Bearer Authorization (%s)",
ExpectedBearer, bearer)
} else {
fmt.Fprint(w, ExpectedMessage)
}
},
}, {
clientConfig: HTTPClientConfig{
Authorization: &Authorization{Credentials: BearerToken},
TLSConfig: TLSConfig{
CAFile: TLSCAChainPath,
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
},
handler: func(w http.ResponseWriter, r *http.Request) {
bearer := r.Header.Get("Authorization")
if bearer != ExpectedBearer {
fmt.Fprintf(w, "The expected Bearer Authorization (%s) differs from the obtained Bearer Authorization (%s)",
ExpectedBearer, bearer)
} else {
fmt.Fprint(w, ExpectedMessage)
}
},
}, {
clientConfig: HTTPClientConfig{
Authorization: &Authorization{CredentialsFile: AuthorizationCredentialsFile, Type: AuthorizationType},
TLSConfig: TLSConfig{
CAFile: TLSCAChainPath,
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
},
handler: func(w http.ResponseWriter, r *http.Request) {
bearer := r.Header.Get("Authorization")
if bearer != ExpectedAuthenticationCredentials {
fmt.Fprintf(w, "The expected Bearer Authorization (%s) differs from the obtained Bearer Authorization (%s)",
ExpectedAuthenticationCredentials, bearer)
} else {
fmt.Fprint(w, ExpectedMessage)
}
},
}, {
clientConfig: HTTPClientConfig{
Authorization: &Authorization{
Credentials: AuthorizationCredentials,
Type: AuthorizationType,
},
TLSConfig: TLSConfig{
CAFile: TLSCAChainPath,
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
},
handler: func(w http.ResponseWriter, r *http.Request) {
bearer := r.Header.Get("Authorization")
if bearer != ExpectedAuthenticationCredentials {
fmt.Fprintf(w, "The expected Bearer Authorization (%s) differs from the obtained Bearer Authorization (%s)",
ExpectedAuthenticationCredentials, bearer)
} else {
fmt.Fprint(w, ExpectedMessage)
}
},
}, {
clientConfig: HTTPClientConfig{
Authorization: &Authorization{
CredentialsFile: BearerTokenFile,
},
TLSConfig: TLSConfig{
CAFile: TLSCAChainPath,
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
},
handler: func(w http.ResponseWriter, r *http.Request) {
bearer := r.Header.Get("Authorization")
if bearer != ExpectedBearer {
fmt.Fprintf(w, "The expected Bearer Authorization (%s) differs from the obtained Bearer Authorization (%s)",
ExpectedBearer, bearer)
} else {
fmt.Fprint(w, ExpectedMessage)
}
},
}, {
clientConfig: HTTPClientConfig{
BasicAuth: &BasicAuth{
Username: ExpectedUsername,
Password: ExpectedPassword,
},
TLSConfig: TLSConfig{
CAFile: TLSCAChainPath,
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
},
handler: func(w http.ResponseWriter, r *http.Request) {
username, password, ok := r.BasicAuth()
if !ok {
fmt.Fprintf(w, "The Authorization header wasn't set")
} else if ExpectedUsername != username {
fmt.Fprintf(w, "The expected username (%s) differs from the obtained username (%s).", ExpectedUsername, username)
} else if ExpectedPassword != password {
fmt.Fprintf(w, "The expected password (%s) differs from the obtained password (%s).", ExpectedPassword, password)
} else {
fmt.Fprint(w, ExpectedMessage)
}
},
}, {
clientConfig: HTTPClientConfig{
FollowRedirects: true,
TLSConfig: TLSConfig{
CAFile: TLSCAChainPath,
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
},
handler: func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/redirected":
fmt.Fprint(w, ExpectedMessage)
default:
w.Header().Set("Location", "/redirected")
w.WriteHeader(http.StatusFound)
fmt.Fprint(w, "It should follow the redirect.")
}
},
}, {
clientConfig: HTTPClientConfig{
FollowRedirects: false,
TLSConfig: TLSConfig{
CAFile: TLSCAChainPath,
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
},
handler: func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/redirected":
fmt.Fprint(w, "The redirection was followed.")
default:
w.Header().Set("Location", "/redirected")
w.WriteHeader(http.StatusFound)
fmt.Fprint(w, ExpectedMessage)
}
},
},
{
clientConfig: HTTPClientConfig{
OAuth2: &OAuth2{
ClientID: "ExpectedUsername",
ClientSecret: "ExpectedPassword",
TLSConfig: TLSConfig{
CAFile: TLSCAChainPath,
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
},
TLSConfig: TLSConfig{
CAFile: TLSCAChainPath,
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
},
handler: func(w http.ResponseWriter, r *http.Request) {
switch r.URL.Path {
case "/token":
res, _ := json.Marshal(oauth2TestServerResponse{
AccessToken: ExpectedAccessToken,
TokenType: "Bearer",
})
w.Header().Add("Content-Type", "application/json")
_, _ = w.Write(res)
default:
authorization := r.Header.Get("Authorization")
if authorization != "Bearer "+ExpectedAccessToken {
fmt.Fprintf(w, "Expected Authorization header %q, got %q", "Bearer "+ExpectedAccessToken, authorization)
} else {
fmt.Fprint(w, ExpectedMessage)
}
}
},
},
}
for _, validConfig := range newClientValidConfig {
testServer, err := newTestServer(validConfig.handler)
if err != nil {
t.Fatal(err.Error())
}
defer testServer.Close()
if validConfig.clientConfig.OAuth2 != nil {
// We don't have access to the test server's URL when configuring the test cases,
// so it has to be specified here.
validConfig.clientConfig.OAuth2.TokenURL = testServer.URL + "/token"
}
err = validConfig.clientConfig.Validate()
if err != nil {
t.Fatal(err.Error())
}
client, err := NewClientFromConfig(validConfig.clientConfig, "test")
if err != nil {
t.Errorf("Can't create a client from this config: %+v", validConfig.clientConfig)
continue
}
response, err := client.Get(testServer.URL)
if err != nil {
t.Errorf("Can't connect to the test server using this config: %+v: %v", validConfig.clientConfig, err)
continue
}
message, err := io.ReadAll(response.Body)
response.Body.Close()
if err != nil {
t.Errorf("Can't read the server response body using this config: %+v", validConfig.clientConfig)
continue
}
trimMessage := strings.TrimSpace(string(message))
if ExpectedMessage != trimMessage {
t.Errorf("The expected message (%s) differs from the obtained message (%s) using this config: %+v",
ExpectedMessage, trimMessage, validConfig.clientConfig)
}
}
}
func TestProxyConfiguration(t *testing.T) {
testcases := map[string]struct {
testFn string
loader func(string) (*HTTPClientConfig, []byte, error)
isValid bool
}{
"good yaml": {
testFn: "testdata/http.conf.proxy-headers.good.yml",
loader: LoadHTTPConfigFile,
isValid: true,
},
"bad yaml": {
testFn: "testdata/http.conf.proxy-headers.bad.yml",
loader: LoadHTTPConfigFile,
isValid: false,
},
"good json": {
testFn: "testdata/http.conf.proxy-headers.good.json",
loader: loadHTTPConfigJSONFile,
isValid: true,
},
"bad json": {
testFn: "testdata/http.conf.proxy-headers.bad.json",
loader: loadHTTPConfigJSONFile,
isValid: false,
},
}
for name, tc := range testcases {
t.Run(name, func(t *testing.T) {
_, _, err := tc.loader(tc.testFn)
if tc.isValid {
if err != nil {
t.Fatalf("Error validating %s: %s", tc.testFn, err)
}
} else {
if err == nil {
t.Fatalf("Expecting error validating %s but got %s", tc.testFn, err)
}
}
})
}
}
func TestNewClientFromInvalidConfig(t *testing.T) {
var newClientInvalidConfig = []struct {
clientConfig HTTPClientConfig
errorMsg string
}{
{
clientConfig: HTTPClientConfig{
TLSConfig: TLSConfig{
CAFile: MissingCA,
InsecureSkipVerify: true},
},
errorMsg: fmt.Sprintf("unable to load specified CA cert %s:", MissingCA),
},
{
clientConfig: HTTPClientConfig{
TLSConfig: TLSConfig{
CAFile: InvalidCA,
InsecureSkipVerify: true},
},
errorMsg: fmt.Sprintf("unable to use specified CA cert %s", InvalidCA),
},
}
for _, invalidConfig := range newClientInvalidConfig {
client, err := NewClientFromConfig(invalidConfig.clientConfig, "test")
if client != nil {
t.Errorf("A client instance was returned instead of nil using this config: %+v", invalidConfig.clientConfig)
}
if err == nil {
t.Errorf("No error was returned using this config: %+v", invalidConfig.clientConfig)
}
if !strings.Contains(err.Error(), invalidConfig.errorMsg) {
t.Errorf("Expected error %q does not contain %q", err.Error(), invalidConfig.errorMsg)
}
}
}
func TestCustomDialContextFunc(t *testing.T) {
dialFn := func(_ context.Context, _, _ string) (net.Conn, error) {
return nil, errors.New(ExpectedError)
}
cfg := HTTPClientConfig{}
client, err := NewClientFromConfig(cfg, "test", WithDialContextFunc(dialFn))
if err != nil {
t.Fatalf("Can't create a client from this config: %+v", cfg)
}
_, err = client.Get("http://localhost")
if err == nil || !strings.Contains(err.Error(), ExpectedError) {
t.Errorf("Expected error %q but got %q", ExpectedError, err)
}
}
func TestCustomIdleConnTimeout(t *testing.T) {
timeout := time.Second * 5
cfg := HTTPClientConfig{}
rt, err := NewRoundTripperFromConfig(cfg, "test", WithIdleConnTimeout(timeout))
if err != nil {
t.Fatalf("Can't create a round-tripper from this config: %+v", cfg)
}
transport, ok := rt.(*http.Transport)
if !ok {
t.Fatalf("Unexpected transport: %+v", transport)
}
if transport.IdleConnTimeout != timeout {
t.Fatalf("Unexpected idle connection timeout: %+v", timeout)
}
}
func TestMissingBearerAuthFile(t *testing.T) {
cfg := HTTPClientConfig{
BearerTokenFile: MissingBearerTokenFile,
TLSConfig: TLSConfig{
CAFile: TLSCAChainPath,
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
}
handler := func(w http.ResponseWriter, r *http.Request) {
bearer := r.Header.Get("Authorization")
if bearer != ExpectedBearer {
fmt.Fprintf(w, "The expected Bearer Authorization (%s) differs from the obtained Bearer Authorization (%s)",
ExpectedBearer, bearer)
} else {
fmt.Fprint(w, ExpectedMessage)
}
}
testServer, err := newTestServer(handler)
if err != nil {
t.Fatal(err.Error())
}
defer testServer.Close()
client, err := NewClientFromConfig(cfg, "test")
if err != nil {
t.Fatal(err)
}
_, err = client.Get(testServer.URL)
if err == nil {
t.Fatal("No error is returned here")
}
if !strings.Contains(err.Error(), "unable to read authorization credentials file missing/bearer.token: open missing/bearer.token: no such file or directory") {
t.Fatal("wrong error message being returned")
}
}
func TestBearerAuthRoundTripper(t *testing.T) {
const (
newBearerToken = "goodbyeandthankyouforthefish"
)
fakeRoundTripper := NewRoundTripCheckRequest(func(req *http.Request) {
bearer := req.Header.Get("Authorization")
if bearer != ExpectedBearer {
t.Errorf("The expected Bearer Authorization (%s) differs from the obtained Bearer Authorization (%s)",
ExpectedBearer, bearer)
}
}, nil, nil)
// Normal flow.
bearerAuthRoundTripper := NewAuthorizationCredentialsRoundTripper("Bearer", BearerToken, fakeRoundTripper)
request, _ := http.NewRequest("GET", "/hitchhiker", nil)
request.Header.Set("User-Agent", "Douglas Adams mind")
_, err := bearerAuthRoundTripper.RoundTrip(request)
if err != nil {
t.Errorf("unexpected error while executing RoundTrip: %s", err.Error())
}
// Should honor already Authorization header set.
bearerAuthRoundTripperShouldNotModifyExistingAuthorization := NewAuthorizationCredentialsRoundTripper("Bearer", newBearerToken, fakeRoundTripper)
request, _ = http.NewRequest("GET", "/hitchhiker", nil)
request.Header.Set("Authorization", ExpectedBearer)
_, err = bearerAuthRoundTripperShouldNotModifyExistingAuthorization.RoundTrip(request)
if err != nil {
t.Errorf("unexpected error while executing RoundTrip: %s", err.Error())
}
}
func TestBearerAuthFileRoundTripper(t *testing.T) {
fakeRoundTripper := NewRoundTripCheckRequest(func(req *http.Request) {
bearer := req.Header.Get("Authorization")
if bearer != ExpectedBearer {
t.Errorf("The expected Bearer Authorization (%s) differs from the obtained Bearer Authorization (%s)",
ExpectedBearer, bearer)
}
}, nil, nil)
// Normal flow.
bearerAuthRoundTripper := NewAuthorizationCredentialsFileRoundTripper("Bearer", BearerTokenFile, fakeRoundTripper)
request, _ := http.NewRequest("GET", "/hitchhiker", nil)
request.Header.Set("User-Agent", "Douglas Adams mind")
_, err := bearerAuthRoundTripper.RoundTrip(request)
if err != nil {
t.Errorf("unexpected error while executing RoundTrip: %s", err.Error())
}
// Should honor already Authorization header set.
bearerAuthRoundTripperShouldNotModifyExistingAuthorization := NewAuthorizationCredentialsFileRoundTripper("Bearer", MissingBearerTokenFile, fakeRoundTripper)
request, _ = http.NewRequest("GET", "/hitchhiker", nil)
request.Header.Set("Authorization", ExpectedBearer)
_, err = bearerAuthRoundTripperShouldNotModifyExistingAuthorization.RoundTrip(request)
if err != nil {
t.Errorf("unexpected error while executing RoundTrip: %s", err.Error())
}
}
func TestTLSConfig(t *testing.T) {
configTLSConfig := TLSConfig{
CAFile: TLSCAChainPath,
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "localhost",
InsecureSkipVerify: false,
}
tlsCAChain, err := os.ReadFile(TLSCAChainPath)
if err != nil {
t.Fatalf("Can't read the CA certificate chain (%s)",
TLSCAChainPath)
}
rootCAs := x509.NewCertPool()
rootCAs.AppendCertsFromPEM(tlsCAChain)
expectedTLSConfig := &tls.Config{
RootCAs: rootCAs,
ServerName: configTLSConfig.ServerName,
InsecureSkipVerify: configTLSConfig.InsecureSkipVerify,
}
tlsConfig, err := NewTLSConfig(&configTLSConfig)
if err != nil {
t.Fatalf("Can't create a new TLS Config from a configuration (%s).", err)
}
clientCertificate, err := tls.LoadX509KeyPair(ClientCertificatePath, ClientKeyNoPassPath)
if err != nil {
t.Fatalf("Can't load the client key pair ('%s' and '%s'). Reason: %s",
ClientCertificatePath, ClientKeyNoPassPath, err)
}
cert, err := tlsConfig.GetClientCertificate(nil)
if err != nil {
t.Fatalf("unexpected error returned by tlsConfig.GetClientCertificate(): %s", err)
}
if !reflect.DeepEqual(cert, &clientCertificate) {
t.Fatalf("Unexpected client certificate result: \n\n%+v\n expected\n\n%+v", cert, clientCertificate)
}
// tlsConfig.rootCAs.LazyCerts contains functions getCert() in go 1.16, which are
// never equal. Compare the Subjects instead.
//nolint:staticcheck // Ignore SA1019. (*CertPool).Subjects is deprecated because it may not include the system certs but it isn't the case here.
if !reflect.DeepEqual(tlsConfig.RootCAs.Subjects(), expectedTLSConfig.RootCAs.Subjects()) {
t.Fatalf("Unexpected RootCAs result: \n\n%+v\n expected\n\n%+v", tlsConfig.RootCAs.Subjects(), expectedTLSConfig.RootCAs.Subjects())
}
tlsConfig.RootCAs = nil
expectedTLSConfig.RootCAs = nil
// Non-nil functions are never equal.
tlsConfig.GetClientCertificate = nil
if !reflect.DeepEqual(tlsConfig, expectedTLSConfig) {
t.Fatalf("Unexpected TLS Config result: \n\n%+v\n expected\n\n%+v", tlsConfig, expectedTLSConfig)
}
}
func TestTLSConfigEmpty(t *testing.T) {
configTLSConfig := TLSConfig{
InsecureSkipVerify: true,
}
expectedTLSConfig := &tls.Config{
InsecureSkipVerify: configTLSConfig.InsecureSkipVerify,
}
tlsConfig, err := NewTLSConfig(&configTLSConfig)
if err != nil {
t.Fatalf("Can't create a new TLS Config from a configuration (%s).", err)
}
if !reflect.DeepEqual(tlsConfig, expectedTLSConfig) {
t.Fatalf("Unexpected TLS Config result: \n\n%+v\n expected\n\n%+v", tlsConfig, expectedTLSConfig)
}
}
func TestTLSConfigInvalidCA(t *testing.T) {
var invalidTLSConfig = []struct {
configTLSConfig TLSConfig
errorMessage string
}{
{
configTLSConfig: TLSConfig{
CAFile: MissingCA,
CertFile: "",
KeyFile: "",
ServerName: "",
InsecureSkipVerify: false},
errorMessage: fmt.Sprintf("unable to load specified CA cert %s:", MissingCA),
}, {
configTLSConfig: TLSConfig{
CAFile: "",
CertFile: MissingCert,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
errorMessage: fmt.Sprintf("unable to read specified client cert (%s):", MissingCert),
}, {
configTLSConfig: TLSConfig{
CAFile: "",
CertFile: ClientCertificatePath,
KeyFile: MissingKey,
ServerName: "",
InsecureSkipVerify: false},
errorMessage: fmt.Sprintf("unable to read specified client key (%s):", MissingKey),
},
{
configTLSConfig: TLSConfig{
CAFile: "",
Cert: readFile(t, ClientCertificatePath),
CertFile: ClientCertificatePath,
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
errorMessage: "at most one of cert and cert_file must be configured",
},
{
configTLSConfig: TLSConfig{
CAFile: "",
CertFile: ClientCertificatePath,
Key: Secret(readFile(t, ClientKeyNoPassPath)),
KeyFile: ClientKeyNoPassPath,
ServerName: "",
InsecureSkipVerify: false},
errorMessage: "at most one of key and key_file must be configured",
},
}
for _, anInvalididTLSConfig := range invalidTLSConfig {
tlsConfig, err := NewTLSConfig(&anInvalididTLSConfig.configTLSConfig)
if tlsConfig != nil && err == nil {
t.Errorf("The TLS Config could be created even with this %+v", anInvalididTLSConfig.configTLSConfig)
continue
}
if !strings.Contains(err.Error(), anInvalididTLSConfig.errorMessage) {
t.Errorf("The expected error should contain %s, but got %s", anInvalididTLSConfig.errorMessage, err)
}
}
}
func TestBasicAuthNoPassword(t *testing.T) {
cfg, _, err := LoadHTTPConfigFile("testdata/http.conf.basic-auth.no-password.yaml")
if err != nil {
t.Fatalf("Error loading HTTP client config: %v", err)
}
client, err := NewClientFromConfig(*cfg, "test")
if err != nil {
t.Fatalf("Error creating HTTP Client: %v", err)
}
rt, ok := client.Transport.(*basicAuthRoundTripper)
if !ok {
t.Fatalf("Error casting to basic auth transport, %v", client.Transport)
}
if rt.username != "user" {
t.Errorf("Bad HTTP client username: %s", rt.username)
}
if string(rt.password) != "" {
t.Errorf("Expected empty HTTP client password: %s", rt.password)
}
if string(rt.passwordFile) != "" {
t.Errorf("Expected empty HTTP client passwordFile: %s", rt.passwordFile)
}
}
func TestBasicAuthNoUsername(t *testing.T) {
cfg, _, err := LoadHTTPConfigFile("testdata/http.conf.basic-auth.no-username.yaml")
if err != nil {
t.Fatalf("Error loading HTTP client config: %v", err)
}
client, err := NewClientFromConfig(*cfg, "test")
if err != nil {
t.Fatalf("Error creating HTTP Client: %v", err)
}
rt, ok := client.Transport.(*basicAuthRoundTripper)
if !ok {
t.Fatalf("Error casting to basic auth transport, %v", client.Transport)
}
if rt.username != "" {
t.Errorf("Got unexpected username: %s", rt.username)
}
if string(rt.password) != "secret" {
t.Errorf("Unexpected HTTP client password: %s", string(rt.password))
}
if string(rt.passwordFile) != "" {
t.Errorf("Expected empty HTTP client passwordFile: %s", rt.passwordFile)
}
}
func TestBasicAuthPasswordFile(t *testing.T) {
cfg, _, err := LoadHTTPConfigFile("testdata/http.conf.basic-auth.good.yaml")
if err != nil {
t.Fatalf("Error loading HTTP client config: %v", err)
}
client, err := NewClientFromConfig(*cfg, "test")
if err != nil {
t.Fatalf("Error creating HTTP Client: %v", err)
}
rt, ok := client.Transport.(*basicAuthRoundTripper)
if !ok {
t.Fatalf("Error casting to basic auth transport, %v", client.Transport)
}
if rt.username != "user" {
t.Errorf("Bad HTTP client username: %s", rt.username)
}
if string(rt.password) != "" {
t.Errorf("Bad HTTP client password: %s", rt.password)
}
if string(rt.passwordFile) != "testdata/basic-auth-password" {
t.Errorf("Bad HTTP client passwordFile: %s", rt.passwordFile)
}
}
func TestBasicUsernameFile(t *testing.T) {
cfg, _, err := LoadHTTPConfigFile("testdata/http.conf.basic-auth.username-file.good.yaml")
if err != nil {
t.Fatalf("Error loading HTTP client config: %v", err)
}
client, err := NewClientFromConfig(*cfg, "test")
if err != nil {
t.Fatalf("Error creating HTTP Client: %v", err)
}
rt, ok := client.Transport.(*basicAuthRoundTripper)
if !ok {
t.Fatalf("Error casting to basic auth transport, %v", client.Transport)
}
if rt.username != "" {
t.Errorf("Bad HTTP client username: %s", rt.username)
}
if string(rt.usernameFile) != "testdata/basic-auth-username" {
t.Errorf("Bad HTTP client usernameFile: %s", rt.usernameFile)
}
if string(rt.passwordFile) != "testdata/basic-auth-password" {
t.Errorf("Bad HTTP client passwordFile: %s", rt.passwordFile)
}
}
func getCertificateBlobs(t *testing.T) map[string][]byte {
files := []string{
TLSCAChainPath,
ClientCertificatePath,
ClientKeyNoPassPath,
ServerCertificatePath,
ServerKeyPath,
WrongClientCertPath,
WrongClientKeyPath,
EmptyFile,
}
bs := make(map[string][]byte, len(files)+1)
for _, f := range files {
b, err := os.ReadFile(f)
if err != nil {
t.Fatal(err)
}
bs[f] = b
}
return bs
}
func writeCertificate(bs map[string][]byte, src string, dst string) {
b, ok := bs[src]
if !ok {
panic(fmt.Sprintf("Couldn't find %q in bs", src))
}
if err := os.WriteFile(dst, b, 0664); err != nil {
panic(err)
}
}
func TestTLSRoundTripper(t *testing.T) {
bs := getCertificateBlobs(t)
tmpDir, err := os.MkdirTemp("", "tlsroundtripper")
if err != nil {
t.Fatal("Failed to create tmp dir", err)
}
defer os.RemoveAll(tmpDir)
ca, cert, key := filepath.Join(tmpDir, "ca"), filepath.Join(tmpDir, "cert"), filepath.Join(tmpDir, "key")
handler := func(w http.ResponseWriter, r *http.Request) {
fmt.Fprint(w, ExpectedMessage)
}
testServer, err := newTestServer(handler)
if err != nil {
t.Fatal(err.Error())
}
defer testServer.Close()
testCases := []struct {
ca string
cert string
key string
errMsg string
}{
{
// Valid certs.
ca: TLSCAChainPath,
cert: ClientCertificatePath,
key: ClientKeyNoPassPath,
},
{
// CA not matching.
ca: ClientCertificatePath,
cert: ClientCertificatePath,
key: ClientKeyNoPassPath,