traefik/server/server_test.go

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package server
import (
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"context"
"fmt"
"net/http"
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"net/http/httptest"
"net/url"
"reflect"
"testing"
"time"
"github.com/containous/flaeg"
"github.com/containous/mux"
"github.com/containous/traefik/configuration"
"github.com/containous/traefik/healthcheck"
"github.com/containous/traefik/metrics"
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"github.com/containous/traefik/middlewares"
"github.com/containous/traefik/rules"
"github.com/containous/traefik/testhelpers"
"github.com/containous/traefik/tls"
"github.com/containous/traefik/types"
"github.com/davecgh/go-spew/spew"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/unrolled/secure"
"github.com/urfave/negroni"
"github.com/vulcand/oxy/roundrobin"
)
// LocalhostCert is a PEM-encoded TLS cert with SAN IPs
// "127.0.0.1" and "[::1]", expiring at Jan 29 16:00:00 2084 GMT.
// generated from src/crypto/tls:
// go run generate_cert.go --rsa-bits 1024 --host 127.0.0.1,::1,example.com --ca --start-date "Jan 1 00:00:00 1970" --duration=1000000h
var (
localhostCert = tls.FileOrContent(`-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`)
// LocalhostKey is the private key for localhostCert.
localhostKey = tls.FileOrContent(`-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----`)
)
type testLoadBalancer struct{}
func (lb *testLoadBalancer) RemoveServer(u *url.URL) error {
return nil
}
func (lb *testLoadBalancer) UpsertServer(u *url.URL, options ...roundrobin.ServerOption) error {
return nil
}
func (lb *testLoadBalancer) Servers() []*url.URL {
return []*url.URL{}
}
func TestPrepareServerTimeouts(t *testing.T) {
tests := []struct {
desc string
globalConfig configuration.GlobalConfiguration
wantIdleTimeout time.Duration
wantReadTimeout time.Duration
wantWriteTimeout time.Duration
}{
{
desc: "full configuration",
globalConfig: configuration.GlobalConfiguration{
RespondingTimeouts: &configuration.RespondingTimeouts{
IdleTimeout: flaeg.Duration(10 * time.Second),
ReadTimeout: flaeg.Duration(12 * time.Second),
WriteTimeout: flaeg.Duration(14 * time.Second),
},
},
wantIdleTimeout: time.Duration(10 * time.Second),
wantReadTimeout: time.Duration(12 * time.Second),
wantWriteTimeout: time.Duration(14 * time.Second),
},
{
desc: "using defaults",
globalConfig: configuration.GlobalConfiguration{},
wantIdleTimeout: time.Duration(180 * time.Second),
wantReadTimeout: time.Duration(0 * time.Second),
wantWriteTimeout: time.Duration(0 * time.Second),
},
{
desc: "deprecated IdleTimeout configured",
globalConfig: configuration.GlobalConfiguration{
IdleTimeout: flaeg.Duration(45 * time.Second),
},
wantIdleTimeout: time.Duration(45 * time.Second),
wantReadTimeout: time.Duration(0 * time.Second),
wantWriteTimeout: time.Duration(0 * time.Second),
},
{
desc: "deprecated and new IdleTimeout configured",
globalConfig: configuration.GlobalConfiguration{
IdleTimeout: flaeg.Duration(45 * time.Second),
RespondingTimeouts: &configuration.RespondingTimeouts{
IdleTimeout: flaeg.Duration(80 * time.Second),
},
},
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wantIdleTimeout: time.Duration(45 * time.Second),
wantReadTimeout: time.Duration(0 * time.Second),
wantWriteTimeout: time.Duration(0 * time.Second),
},
}
for _, test := range tests {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
entryPointName := "http"
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entryPoint := &configuration.EntryPoint{
Address: "localhost:0",
ForwardedHeaders: &configuration.ForwardedHeaders{Insecure: true},
}
router := middlewares.NewHandlerSwitcher(mux.NewRouter())
srv := NewServer(test.globalConfig, nil)
httpServer, _, err := srv.prepareServer(entryPointName, entryPoint, router, nil, nil)
if err != nil {
t.Fatalf("Unexpected error when preparing srv: %s", err)
}
if httpServer.IdleTimeout != test.wantIdleTimeout {
t.Errorf("Got %s as IdleTimeout, want %s", httpServer.IdleTimeout, test.wantIdleTimeout)
}
if httpServer.ReadTimeout != test.wantReadTimeout {
t.Errorf("Got %s as ReadTimeout, want %s", httpServer.ReadTimeout, test.wantReadTimeout)
}
if httpServer.WriteTimeout != test.wantWriteTimeout {
t.Errorf("Got %s as WriteTimeout, want %s", httpServer.WriteTimeout, test.wantWriteTimeout)
}
})
}
}
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func TestListenProvidersSkipsEmptyConfigs(t *testing.T) {
server, stop, invokeStopChan := setupListenProvider(10 * time.Millisecond)
defer invokeStopChan()
go func() {
for {
select {
case <-stop:
return
case <-server.configurationValidatedChan:
t.Error("An empty configuration was published but it should not")
}
}
}()
server.configurationChan <- types.ConfigMessage{ProviderName: "kubernetes"}
// give some time so that the configuration can be processed
time.Sleep(100 * time.Millisecond)
}
func TestListenProvidersSkipsSameConfigurationForProvider(t *testing.T) {
server, stop, invokeStopChan := setupListenProvider(10 * time.Millisecond)
defer invokeStopChan()
publishedConfigCount := 0
go func() {
for {
select {
case <-stop:
return
case config := <-server.configurationValidatedChan:
// set the current configuration
// this is usually done in the processing part of the published configuration
// so we have to emulate the behaviour here
currentConfigurations := server.currentConfigurations.Get().(types.Configurations)
currentConfigurations[config.ProviderName] = config.Configuration
server.currentConfigurations.Set(currentConfigurations)
publishedConfigCount++
if publishedConfigCount > 1 {
t.Error("Same configuration should not be published multiple times")
}
}
}
}()
config := buildDynamicConfig(
withFrontend("frontend", buildFrontend()),
withBackend("backend", buildBackend()),
)
// provide a configuration
server.configurationChan <- types.ConfigMessage{ProviderName: "kubernetes", Configuration: config}
// give some time so that the configuration can be processed
time.Sleep(20 * time.Millisecond)
// provide the same configuration a second time
server.configurationChan <- types.ConfigMessage{ProviderName: "kubernetes", Configuration: config}
// give some time so that the configuration can be processed
time.Sleep(100 * time.Millisecond)
}
func TestListenProvidersPublishesConfigForEachProvider(t *testing.T) {
server, stop, invokeStopChan := setupListenProvider(10 * time.Millisecond)
defer invokeStopChan()
publishedProviderConfigCount := map[string]int{}
publishedConfigCount := 0
consumePublishedConfigsDone := make(chan bool)
go func() {
for {
select {
case <-stop:
return
case newConfig := <-server.configurationValidatedChan:
publishedProviderConfigCount[newConfig.ProviderName]++
publishedConfigCount++
if publishedConfigCount == 2 {
consumePublishedConfigsDone <- true
return
}
}
}
}()
config := buildDynamicConfig(
withFrontend("frontend", buildFrontend()),
withBackend("backend", buildBackend()),
)
server.configurationChan <- types.ConfigMessage{ProviderName: "kubernetes", Configuration: config}
server.configurationChan <- types.ConfigMessage{ProviderName: "marathon", Configuration: config}
select {
case <-consumePublishedConfigsDone:
if val := publishedProviderConfigCount["kubernetes"]; val != 1 {
t.Errorf("Got %d configuration publication(s) for provider %q, want 1", val, "kubernetes")
}
if val := publishedProviderConfigCount["marathon"]; val != 1 {
t.Errorf("Got %d configuration publication(s) for provider %q, want 1", val, "marathon")
}
case <-time.After(100 * time.Millisecond):
t.Errorf("Published configurations were not consumed in time")
}
}
// setupListenProvider configures the Server and starts listenProviders
func setupListenProvider(throttleDuration time.Duration) (server *Server, stop chan bool, invokeStopChan func()) {
stop = make(chan bool)
invokeStopChan = func() {
stop <- true
}
globalConfig := configuration.GlobalConfiguration{
EntryPoints: configuration.EntryPoints{
"http": &configuration.EntryPoint{},
},
ProvidersThrottleDuration: flaeg.Duration(throttleDuration),
}
server = NewServer(globalConfig, nil)
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go server.listenProviders(stop)
return server, stop, invokeStopChan
}
func TestThrottleProviderConfigReload(t *testing.T) {
throttleDuration := 30 * time.Millisecond
publishConfig := make(chan types.ConfigMessage)
providerConfig := make(chan types.ConfigMessage)
stop := make(chan bool)
defer func() {
stop <- true
}()
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globalConfig := configuration.GlobalConfiguration{}
server := NewServer(globalConfig, nil)
go server.throttleProviderConfigReload(throttleDuration, publishConfig, providerConfig, stop)
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publishedConfigCount := 0
stopConsumeConfigs := make(chan bool)
go func() {
for {
select {
case <-stop:
return
case <-stopConsumeConfigs:
return
case <-publishConfig:
publishedConfigCount++
}
}
}()
// publish 5 new configs, one new config each 10 milliseconds
for i := 0; i < 5; i++ {
providerConfig <- types.ConfigMessage{}
time.Sleep(10 * time.Millisecond)
}
// after 50 milliseconds 5 new configs were published
// with a throttle duration of 30 milliseconds this means, we should have received 2 new configs
wantPublishedConfigCount := 2
if publishedConfigCount != wantPublishedConfigCount {
t.Errorf("%d times configs were published, want %d times", publishedConfigCount, wantPublishedConfigCount)
}
stopConsumeConfigs <- true
select {
case <-publishConfig:
// There should be exactly one more message that we receive after ~60 milliseconds since the start of the test.
select {
case <-publishConfig:
t.Error("extra config publication found")
case <-time.After(100 * time.Millisecond):
return
}
case <-time.After(100 * time.Millisecond):
t.Error("Last config was not published in time")
}
}
func TestServerMultipleFrontendRules(t *testing.T) {
cases := []struct {
expression string
requestURL string
expectedURL string
}{
{
expression: "Host:foo.bar",
requestURL: "http://foo.bar",
expectedURL: "http://foo.bar",
},
{
expression: "PathPrefix:/management;ReplacePath:/health",
requestURL: "http://foo.bar/management",
expectedURL: "http://foo.bar/health",
},
{
expression: "Host:foo.bar;AddPrefix:/blah",
requestURL: "http://foo.bar/baz",
expectedURL: "http://foo.bar/blah/baz",
},
{
expression: "PathPrefixStripRegex:/one/{two}/{three:[0-9]+}",
requestURL: "http://foo.bar/one/some/12345/four",
expectedURL: "http://foo.bar/four",
},
{
expression: "PathPrefixStripRegex:/one/{two}/{three:[0-9]+};AddPrefix:/zero",
requestURL: "http://foo.bar/one/some/12345/four",
expectedURL: "http://foo.bar/zero/four",
},
{
expression: "AddPrefix:/blah;ReplacePath:/baz",
requestURL: "http://foo.bar/hello",
expectedURL: "http://foo.bar/baz",
},
{
expression: "PathPrefixStrip:/management;ReplacePath:/health",
requestURL: "http://foo.bar/management",
expectedURL: "http://foo.bar/health",
},
}
for _, test := range cases {
test := test
t.Run(test.expression, func(t *testing.T) {
t.Parallel()
router := mux.NewRouter()
route := router.NewRoute()
serverRoute := &types.ServerRoute{Route: route}
rules := &rules.Rules{Route: serverRoute}
expression := test.expression
routeResult, err := rules.Parse(expression)
if err != nil {
t.Fatalf("Error while building route for %s: %+v", expression, err)
}
request := testhelpers.MustNewRequest(http.MethodGet, test.requestURL, nil)
routeMatch := routeResult.Match(request, &mux.RouteMatch{Route: routeResult})
if !routeMatch {
t.Fatalf("Rule %s doesn't match", expression)
}
server := new(Server)
server.wireFrontendBackend(serverRoute, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.URL.String() != test.expectedURL {
t.Fatalf("got URL %s, expected %s", r.URL.String(), test.expectedURL)
}
}))
serverRoute.Route.GetHandler().ServeHTTP(nil, request)
})
}
}
func TestServerLoadConfigHealthCheckOptions(t *testing.T) {
healthChecks := []*types.HealthCheck{
nil,
{
Path: "/path",
},
}
for _, lbMethod := range []string{"Wrr", "Drr"} {
for _, healthCheck := range healthChecks {
t.Run(fmt.Sprintf("%s/hc=%t", lbMethod, healthCheck != nil), func(t *testing.T) {
globalConfig := configuration.GlobalConfiguration{
EntryPoints: configuration.EntryPoints{
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"http": &configuration.EntryPoint{
ForwardedHeaders: &configuration.ForwardedHeaders{Insecure: true},
},
},
HealthCheck: &configuration.HealthCheckConfig{Interval: flaeg.Duration(5 * time.Second)},
}
dynamicConfigs := types.Configurations{
"config": &types.Configuration{
Frontends: map[string]*types.Frontend{
"frontend": {
EntryPoints: []string{"http"},
Backend: "backend",
},
},
Backends: map[string]*types.Backend{
"backend": {
Servers: map[string]types.Server{
"server": {
URL: "http://localhost",
},
},
LoadBalancer: &types.LoadBalancer{
Method: lbMethod,
},
HealthCheck: healthCheck,
},
},
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TLS: []*tls.Configuration{
{
Certificate: &tls.Certificate{
CertFile: localhostCert,
KeyFile: localhostKey,
},
EntryPoints: []string{"http"},
},
},
},
}
srv := NewServer(globalConfig, nil)
if _, err := srv.loadConfig(dynamicConfigs, globalConfig); err != nil {
t.Fatalf("got error: %s", err)
}
wantNumHealthCheckBackends := 0
if healthCheck != nil {
wantNumHealthCheckBackends = 1
}
gotNumHealthCheckBackends := len(healthcheck.GetHealthCheck(testhelpers.NewCollectingHealthCheckMetrics()).Backends)
if gotNumHealthCheckBackends != wantNumHealthCheckBackends {
t.Errorf("got %d health check backends, want %d", gotNumHealthCheckBackends, wantNumHealthCheckBackends)
}
})
}
}
}
func TestServerParseHealthCheckOptions(t *testing.T) {
lb := &testLoadBalancer{}
globalInterval := 15 * time.Second
tests := []struct {
desc string
hc *types.HealthCheck
wantOpts *healthcheck.Options
}{
{
desc: "nil health check",
hc: nil,
wantOpts: nil,
},
{
desc: "empty path",
hc: &types.HealthCheck{
Path: "",
},
wantOpts: nil,
},
{
desc: "unparseable interval",
hc: &types.HealthCheck{
Path: "/path",
Interval: "unparseable",
},
wantOpts: &healthcheck.Options{
Path: "/path",
Interval: globalInterval,
LB: lb,
},
},
{
desc: "sub-zero interval",
hc: &types.HealthCheck{
Path: "/path",
Interval: "-42s",
},
wantOpts: &healthcheck.Options{
Path: "/path",
Interval: globalInterval,
LB: lb,
},
},
{
desc: "parseable interval",
hc: &types.HealthCheck{
Path: "/path",
Interval: "5m",
},
wantOpts: &healthcheck.Options{
Path: "/path",
Interval: 5 * time.Minute,
LB: lb,
},
},
}
for _, test := range tests {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
gotOpts := parseHealthCheckOptions(lb, "backend", test.hc, &configuration.HealthCheckConfig{Interval: flaeg.Duration(globalInterval)})
if !reflect.DeepEqual(gotOpts, test.wantOpts) {
t.Errorf("got health check options %+v, want %+v", gotOpts, test.wantOpts)
}
})
}
}
func TestBuildIPWhiteLister(t *testing.T) {
testCases := []struct {
desc string
whitelistSourceRange []string
whiteList *types.WhiteList
middlewareConfigured bool
errMessage string
}{
{
desc: "no whitelists configured",
whitelistSourceRange: nil,
middlewareConfigured: false,
errMessage: "",
},
{
desc: "whitelists configured (deprecated)",
whitelistSourceRange: []string{
"1.2.3.4/24",
"fe80::/16",
},
middlewareConfigured: true,
errMessage: "",
},
{
desc: "invalid whitelists configured (deprecated)",
whitelistSourceRange: []string{
"foo",
},
middlewareConfigured: false,
errMessage: "parsing CIDR whitelist [foo]: parsing CIDR white list <nil>: invalid CIDR address: foo",
},
{
desc: "whitelists configured",
whiteList: &types.WhiteList{
SourceRange: []string{
"1.2.3.4/24",
"fe80::/16",
},
UseXForwardedFor: false,
},
middlewareConfigured: true,
errMessage: "",
},
{
desc: "invalid whitelists configured (deprecated)",
whiteList: &types.WhiteList{
SourceRange: []string{
"foo",
},
UseXForwardedFor: false,
},
middlewareConfigured: false,
errMessage: "parsing CIDR whitelist [foo]: parsing CIDR white list <nil>: invalid CIDR address: foo",
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
middleware, err := buildIPWhiteLister(test.whiteList, test.whitelistSourceRange)
if test.errMessage != "" {
require.EqualError(t, err, test.errMessage)
} else {
assert.NoError(t, err)
if test.middlewareConfigured {
require.NotNil(t, middleware, "not expected middleware to be configured")
} else {
require.Nil(t, middleware, "expected middleware to be configured")
}
}
})
}
}
func TestServerLoadConfigEmptyBasicAuth(t *testing.T) {
globalConfig := configuration.GlobalConfiguration{
EntryPoints: configuration.EntryPoints{
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"http": &configuration.EntryPoint{ForwardedHeaders: &configuration.ForwardedHeaders{Insecure: true}},
},
}
dynamicConfigs := types.Configurations{
"config": &types.Configuration{
Frontends: map[string]*types.Frontend{
"frontend": {
EntryPoints: []string{"http"},
Backend: "backend",
BasicAuth: []string{""},
},
},
Backends: map[string]*types.Backend{
"backend": {
Servers: map[string]types.Server{
"server": {
URL: "http://localhost",
},
},
LoadBalancer: &types.LoadBalancer{
Method: "Wrr",
},
},
},
},
}
srv := NewServer(globalConfig, nil)
if _, err := srv.loadConfig(dynamicConfigs, globalConfig); err != nil {
t.Fatalf("got error: %s", err)
}
}
func TestServerLoadCertificateWithDefaultEntryPoint(t *testing.T) {
globalConfig := configuration.GlobalConfiguration{
EntryPoints: configuration.EntryPoints{
"https": &configuration.EntryPoint{TLS: &tls.TLS{}},
"http": &configuration.EntryPoint{},
},
DefaultEntryPoints: []string{"http", "https"},
}
dynamicConfigs := types.Configurations{
"config": &types.Configuration{
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TLS: []*tls.Configuration{
{
Certificate: &tls.Certificate{
CertFile: localhostCert,
KeyFile: localhostKey,
},
},
},
},
}
srv := NewServer(globalConfig, nil)
if mapEntryPoints, err := srv.loadConfig(dynamicConfigs, globalConfig); err != nil {
t.Fatalf("got error: %s", err)
} else if mapEntryPoints["https"].certs.Get() == nil {
t.Fatal("got error: https entryPoint must have TLS certificates.")
}
}
func TestConfigureBackends(t *testing.T) {
validMethod := "Drr"
defaultMethod := "wrr"
tests := []struct {
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desc string
lb *types.LoadBalancer
wantMethod string
wantStickiness *types.Stickiness
}{
{
desc: "valid load balancer method with sticky enabled",
lb: &types.LoadBalancer{
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Method: validMethod,
Stickiness: &types.Stickiness{},
},
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wantMethod: validMethod,
wantStickiness: &types.Stickiness{},
},
{
desc: "valid load balancer method with sticky disabled",
lb: &types.LoadBalancer{
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Method: validMethod,
Stickiness: nil,
},
wantMethod: validMethod,
},
{
desc: "invalid load balancer method with sticky enabled",
lb: &types.LoadBalancer{
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Method: "Invalid",
Stickiness: &types.Stickiness{},
},
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wantMethod: defaultMethod,
wantStickiness: &types.Stickiness{},
},
{
desc: "invalid load balancer method with sticky disabled",
lb: &types.LoadBalancer{
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Method: "Invalid",
Stickiness: nil,
},
wantMethod: defaultMethod,
},
{
desc: "missing load balancer",
lb: nil,
wantMethod: defaultMethod,
},
}
for _, test := range tests {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
backend := &types.Backend{
LoadBalancer: test.lb,
}
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configureBackends(map[string]*types.Backend{
"backend": backend,
})
wantLB := types.LoadBalancer{
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Method: test.wantMethod,
Stickiness: test.wantStickiness,
}
if !reflect.DeepEqual(*backend.LoadBalancer, wantLB) {
t.Errorf("got backend load-balancer\n%v\nwant\n%v\n", spew.Sdump(backend.LoadBalancer), spew.Sdump(wantLB))
}
})
}
}
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func TestServerEntryPointWhitelistConfig(t *testing.T) {
tests := []struct {
desc string
entrypoint *configuration.EntryPoint
wantMiddleware bool
}{
{
desc: "no whitelist middleware if no config on entrypoint",
entrypoint: &configuration.EntryPoint{
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Address: ":0",
ForwardedHeaders: &configuration.ForwardedHeaders{Insecure: true},
},
wantMiddleware: false,
},
{
desc: "whitelist middleware should be added if configured on entrypoint",
entrypoint: &configuration.EntryPoint{
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Address: ":0",
WhitelistSourceRange: []string{
"127.0.0.1/32",
},
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ForwardedHeaders: &configuration.ForwardedHeaders{Insecure: true},
},
wantMiddleware: true,
},
}
for _, test := range tests {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
srv := Server{
globalConfiguration: configuration.GlobalConfiguration{
EntryPoints: map[string]*configuration.EntryPoint{
"test": test.entrypoint,
},
},
metricsRegistry: metrics.NewVoidRegistry(),
}
srv.serverEntryPoints = srv.buildEntryPoints(srv.globalConfiguration)
srvEntryPoint := srv.setupServerEntryPoint("test", srv.serverEntryPoints["test"])
handler := srvEntryPoint.httpServer.Handler.(*mux.Router).NotFoundHandler.(*negroni.Negroni)
found := false
for _, handler := range handler.Handlers() {
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if reflect.TypeOf(handler) == reflect.TypeOf((*middlewares.IPWhiteLister)(nil)) {
found = true
}
}
if found && !test.wantMiddleware {
t.Errorf("ip whitelist middleware was installed even though it should not")
}
if !found && test.wantMiddleware {
t.Errorf("ip whitelist middleware was not installed even though it should have")
}
})
}
}
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func TestServerResponseEmptyBackend(t *testing.T) {
const requestPath = "/path"
const routeRule = "Path:" + requestPath
testCases := []struct {
desc string
dynamicConfig func(testServerURL string) *types.Configuration
wantStatusCode int
}{
{
desc: "Ok",
dynamicConfig: func(testServerURL string) *types.Configuration {
return buildDynamicConfig(
withFrontend("frontend", buildFrontend(withRoute(requestPath, routeRule))),
withBackend("backend", buildBackend(withServer("testServer", testServerURL))),
)
},
wantStatusCode: http.StatusOK,
},
{
desc: "No Frontend",
dynamicConfig: func(testServerURL string) *types.Configuration {
return buildDynamicConfig()
},
wantStatusCode: http.StatusNotFound,
},
{
desc: "Empty Backend LB-Drr",
dynamicConfig: func(testServerURL string) *types.Configuration {
return buildDynamicConfig(
withFrontend("frontend", buildFrontend(withRoute(requestPath, routeRule))),
withBackend("backend", buildBackend(withLoadBalancer("Drr", false))),
)
},
wantStatusCode: http.StatusServiceUnavailable,
},
{
desc: "Empty Backend LB-Drr Sticky",
dynamicConfig: func(testServerURL string) *types.Configuration {
return buildDynamicConfig(
withFrontend("frontend", buildFrontend(withRoute(requestPath, routeRule))),
withBackend("backend", buildBackend(withLoadBalancer("Drr", true))),
)
},
wantStatusCode: http.StatusServiceUnavailable,
},
{
desc: "Empty Backend LB-Wrr",
dynamicConfig: func(testServerURL string) *types.Configuration {
return buildDynamicConfig(
withFrontend("frontend", buildFrontend(withRoute(requestPath, routeRule))),
withBackend("backend", buildBackend(withLoadBalancer("Wrr", false))),
)
},
wantStatusCode: http.StatusServiceUnavailable,
},
{
desc: "Empty Backend LB-Wrr Sticky",
dynamicConfig: func(testServerURL string) *types.Configuration {
return buildDynamicConfig(
withFrontend("frontend", buildFrontend(withRoute(requestPath, routeRule))),
withBackend("backend", buildBackend(withLoadBalancer("Wrr", true))),
)
},
wantStatusCode: http.StatusServiceUnavailable,
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
testServer := httptest.NewServer(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
rw.WriteHeader(http.StatusOK)
}))
defer testServer.Close()
globalConfig := configuration.GlobalConfiguration{
EntryPoints: configuration.EntryPoints{
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"http": &configuration.EntryPoint{ForwardedHeaders: &configuration.ForwardedHeaders{Insecure: true}},
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},
}
dynamicConfigs := types.Configurations{"config": test.dynamicConfig(testServer.URL)}
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srv := NewServer(globalConfig, nil)
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entryPoints, err := srv.loadConfig(dynamicConfigs, globalConfig)
if err != nil {
t.Fatalf("error loading config: %s", err)
}
responseRecorder := &httptest.ResponseRecorder{}
request := httptest.NewRequest(http.MethodGet, testServer.URL+requestPath, nil)
entryPoints["http"].httpRouter.ServeHTTP(responseRecorder, request)
if responseRecorder.Result().StatusCode != test.wantStatusCode {
t.Errorf("got status code %d, want %d", responseRecorder.Result().StatusCode, test.wantStatusCode)
}
})
}
}
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func TestBuildRedirectHandler(t *testing.T) {
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srv := Server{
globalConfiguration: configuration.GlobalConfiguration{
EntryPoints: configuration.EntryPoints{
"http": &configuration.EntryPoint{Address: ":80"},
"https": &configuration.EntryPoint{Address: ":443", TLS: &tls.TLS{}},
},
},
}
testCases := []struct {
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desc string
srcEntryPointName string
url string
entryPoint *configuration.EntryPoint
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redirect *types.Redirect
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expectedURL string
}{
{
desc: "redirect regex",
srcEntryPointName: "http",
url: "http://foo.com",
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redirect: &types.Redirect{
Regex: `^(?:http?:\/\/)(foo)(\.com)$`,
Replacement: "https://$1{{\"bar\"}}$2",
},
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entryPoint: &configuration.EntryPoint{
Address: ":80",
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Redirect: &types.Redirect{
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Regex: `^(?:http?:\/\/)(foo)(\.com)$`,
Replacement: "https://$1{{\"bar\"}}$2",
},
},
expectedURL: "https://foobar.com",
},
{
desc: "redirect entry point",
srcEntryPointName: "http",
url: "http://foo:80",
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redirect: &types.Redirect{
EntryPoint: "https",
},
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entryPoint: &configuration.EntryPoint{
Address: ":80",
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Redirect: &types.Redirect{
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EntryPoint: "https",
},
},
expectedURL: "https://foo:443",
},
{
desc: "redirect entry point with regex (ignored)",
srcEntryPointName: "http",
url: "http://foo.com:80",
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redirect: &types.Redirect{
EntryPoint: "https",
Regex: `^(?:http?:\/\/)(foo)(\.com)$`,
Replacement: "https://$1{{\"bar\"}}$2",
},
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entryPoint: &configuration.EntryPoint{
Address: ":80",
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Redirect: &types.Redirect{
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EntryPoint: "https",
Regex: `^(?:http?:\/\/)(foo)(\.com)$`,
Replacement: "https://$1{{\"bar\"}}$2",
},
},
expectedURL: "https://foo.com:443",
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
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rewrite, err := srv.buildRedirectHandler(test.srcEntryPointName, test.redirect)
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require.NoError(t, err)
req := testhelpers.MustNewRequest(http.MethodGet, test.url, nil)
recorder := httptest.NewRecorder()
rewrite.ServeHTTP(recorder, req, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Add("Location", "fail")
}))
location, err := recorder.Result().Location()
require.NoError(t, err)
assert.Equal(t, test.expectedURL, location.String())
})
}
}
type mockContext struct {
headers http.Header
}
func (c mockContext) Deadline() (deadline time.Time, ok bool) {
return deadline, ok
}
func (c mockContext) Done() <-chan struct{} {
ch := make(chan struct{})
close(ch)
return ch
}
func (c mockContext) Err() error {
return context.DeadlineExceeded
}
func (c mockContext) Value(key interface{}) interface{} {
return c.headers
}
func TestNewServerWithResponseModifiers(t *testing.T) {
cases := []struct {
desc string
headerMiddleware *middlewares.HeaderStruct
secureMiddleware *secure.Secure
ctx context.Context
expected map[string]string
}{
{
desc: "header and secure nil",
headerMiddleware: nil,
secureMiddleware: nil,
ctx: mockContext{},
expected: map[string]string{
"X-Default": "powpow",
"Referrer-Policy": "same-origin",
},
},
{
desc: "header middleware not nil",
headerMiddleware: middlewares.NewHeaderFromStruct(&types.Headers{
CustomResponseHeaders: map[string]string{
"X-Default": "powpow",
},
}),
secureMiddleware: nil,
ctx: mockContext{},
expected: map[string]string{
"X-Default": "powpow",
"Referrer-Policy": "same-origin",
},
},
{
desc: "secure middleware not nil",
headerMiddleware: nil,
secureMiddleware: middlewares.NewSecure(&types.Headers{
ReferrerPolicy: "no-referrer",
}),
ctx: mockContext{
headers: http.Header{"Referrer-Policy": []string{"no-referrer"}},
},
expected: map[string]string{
"X-Default": "powpow",
"Referrer-Policy": "no-referrer",
},
},
{
desc: "header and secure middleware not nil",
headerMiddleware: middlewares.NewHeaderFromStruct(&types.Headers{
CustomResponseHeaders: map[string]string{
"Referrer-Policy": "powpow",
},
}),
secureMiddleware: middlewares.NewSecure(&types.Headers{
ReferrerPolicy: "no-referrer",
}),
ctx: mockContext{
headers: http.Header{"Referrer-Policy": []string{"no-referrer"}},
},
expected: map[string]string{
"X-Default": "powpow",
"Referrer-Policy": "powpow",
},
},
}
for _, test := range cases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
headers := make(http.Header)
headers.Add("X-Default", "powpow")
headers.Add("Referrer-Policy", "same-origin")
req := httptest.NewRequest(http.MethodGet, "http://127.0.0.1", nil)
res := &http.Response{
Request: req.WithContext(test.ctx),
Header: headers,
}
responseModifier := buildModifyResponse(test.secureMiddleware, test.headerMiddleware)
err := responseModifier(res)
assert.NoError(t, err)
assert.Equal(t, len(test.expected), len(res.Header))
for k, v := range test.expected {
assert.Equal(t, v, res.Header.Get(k))
}
})
}
}
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func buildDynamicConfig(dynamicConfigBuilders ...func(*types.Configuration)) *types.Configuration {
config := &types.Configuration{
Frontends: make(map[string]*types.Frontend),
Backends: make(map[string]*types.Backend),
}
for _, build := range dynamicConfigBuilders {
build(config)
}
return config
}
func withFrontend(frontendName string, frontend *types.Frontend) func(*types.Configuration) {
return func(config *types.Configuration) {
config.Frontends[frontendName] = frontend
}
}
func withBackend(backendName string, backend *types.Backend) func(*types.Configuration) {
return func(config *types.Configuration) {
config.Backends[backendName] = backend
}
}
func buildFrontend(frontendBuilders ...func(*types.Frontend)) *types.Frontend {
fe := &types.Frontend{
EntryPoints: []string{"http"},
Backend: "backend",
Routes: make(map[string]types.Route),
}
for _, build := range frontendBuilders {
build(fe)
}
return fe
}
func withRoute(routeName, rule string) func(*types.Frontend) {
return func(fe *types.Frontend) {
fe.Routes[routeName] = types.Route{Rule: rule}
}
}
func buildBackend(backendBuilders ...func(*types.Backend)) *types.Backend {
be := &types.Backend{
Servers: make(map[string]types.Server),
LoadBalancer: &types.LoadBalancer{Method: "Wrr"},
}
for _, build := range backendBuilders {
build(be)
}
return be
}
func withServer(name, url string) func(backend *types.Backend) {
return func(be *types.Backend) {
be.Servers[name] = types.Server{URL: url}
}
}
func withLoadBalancer(method string, sticky bool) func(*types.Backend) {
return func(be *types.Backend) {
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if sticky {
be.LoadBalancer = &types.LoadBalancer{Method: method, Stickiness: &types.Stickiness{CookieName: "test"}}
} else {
be.LoadBalancer = &types.LoadBalancer{Method: method}
}
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}
}