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Disable domain fronting

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Co-authored-by: jbdoumenjou <jb.doumenjou@gmail.com>
This commit is contained in:
Romain 2020-07-08 12:18:03 +02:00 committed by GitHub
parent 416c367778
commit 2b35397169
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GPG key ID: 4AEE18F83AFDEB23
19 changed files with 532 additions and 58 deletions
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3
cmd/traefik/traefik.go
View file

@ -25,6 +25,7 @@ import (
"github.com/containous/traefik/v2/pkg/provider/acme"
"github.com/containous/traefik/v2/pkg/provider/aggregator"
"github.com/containous/traefik/v2/pkg/provider/traefik"
"github.com/containous/traefik/v2/pkg/rules"
"github.com/containous/traefik/v2/pkg/safe"
"github.com/containous/traefik/v2/pkg/server"
"github.com/containous/traefik/v2/pkg/server/middleware"
@ -161,6 +162,8 @@ func runCmd(staticConfiguration *static.Configuration) error {
}
func setupServer(staticConfiguration *static.Configuration) (*server.Server, error) {
rules.EnableDomainFronting(staticConfiguration.Global.InsecureSNI)
providerAggregator := aggregator.NewProviderAggregator(*staticConfiguration.Providers)
// adds internal provider

16
docs/content/https/tls.md
View file

@ -130,6 +130,20 @@ tls:
If no default certificate is provided, Traefik generates and uses a self-signed certificate.
## Domain fronting
Basically, [domain fronting](https://en.wikipedia.org/wiki/Domain_fronting) is a technique that allows to open a
connection with a specific domain name, thanks to the
[Server Name Indication](https://en.wikipedia.org/wiki/Server_Name_Indication), then access a service with another
domain set in the HTTP `Host` header.
Since the `v2.2.2`, Traefik avoids (by default) using domain fronting.
As it is valid for advanced use cases, the `HostHeader` and `HostSNI` [rules](../routing/routers/index.md#rule) allow
to fine tune the routing with the `Server Name Indication` and `Host header` value.
If you encounter routing issues with a previously working configuration, please refer to the
[migration guide](../migration/v2.md) to update your configuration.
## TLS Options
The TLS options allow one to configure some parameters of the TLS connection.
@ -317,7 +331,7 @@ spec:
### Strict SNI Checking
With strict SNI checking, Traefik won't allow connections from clients connections
that do not specify a server_name extension.
that do not specify a server_name extension or don't match any certificate configured on the tlsOption.
```toml tab="File (TOML)"
# Dynamic configuration

112
docs/content/migration/v2.md
View file

@ -1,5 +1,117 @@
# Migration: Steps needed between the versions
## v2.x to v2.2.2
### Domain fronting
In `v2.2.2` we introduced the ability to avoid [Domain fronting](https://en.wikipedia.org/wiki/Domain_fronting),
and enabled it by default for [https routers](../routing/routers/index.md#rule) configured with ```Host(`something`)```.
!!! example "Allow Domain Fronting on a Specific Router"
!!! info "Before v2.2.2"
```yaml tab="Docker"
labels:
- "traefik.http.routers.router0.rule=Host(`test.localhost`)"
```
```yaml tab="K8s Ingress"
apiVersion: traefik.containo.us/v1alpha1
kind: IngressRoute
metadata:
name: ingressroutebar
spec:
entryPoints:
- http
routes:
- match: Host(`test.localhost`)
kind: Rule
services:
- name: server0
port: 80
- name: server1
port: 80
```
```toml tab="File (TOML)"
[http.routers.router0]
rule = "Host(`test.localhost`)"
service = "my-service"
```
```toml tab="File (YAML)"
http:
routers:
router0:
rule: "Host(`test.localhost`)"
service: my-service
```
!!! info "v2.2.2"
```yaml tab="Docker"
labels:
- "traefik.http.routers.router0.rule=HostHeader(`test.localhost`)"
```
```yaml tab="K8s Ingress"
apiVersion: traefik.containo.us/v1alpha1
kind: IngressRoute
metadata:
name: ingressroutebar
spec:
entryPoints:
- http
routes:
- match: HostHeader(`test.localhost`)
kind: Rule
services:
- name: server0
port: 80
- name: server1
port: 80
```
```toml tab="File (TOML)"
[http.routers.router0]
rule = "HostHeader(`test.localhost`)"
service = "my-service"
```
```toml tab="File (YAML)"
http:
routers:
router0:
rule: "HostHeader(`test.localhost`)"
service: my-service
```
As a fallback, a new flag is available as a global option:
!!! example "Enabling Domain Fronting for All Routers"
```toml tab="File (TOML)"
# Static configuration
[global]
# Enabling domain fronting
insecureSNI = true
```
```yaml tab="File (YAML)"
# Static configuration
global:
# Enabling domain fronting
insecureSNI: true
```
```bash tab="CLI"
# Enabling domain fronting
--global.insecureSNI
```
## v2.0 to v2.1
### Kubernetes CRD

3
docs/content/reference/static-configuration/cli-ref.md
View file

@ -162,6 +162,9 @@ WriteTimeout is the maximum duration before timing out writes of the response. I
`--global.checknewversion`:
Periodically check if a new version has been released. (Default: ```false```)
`--global.insecuresni`:
Allow domain fronting. If the option is not specified, it will be disabled by default. (Default: ```false```)
`--global.sendanonymoususage`:
Periodically send anonymous usage statistics. If the option is not specified, it will be enabled by default. (Default: ```false```)

3
docs/content/reference/static-configuration/env-ref.md
View file

@ -162,6 +162,9 @@ WriteTimeout is the maximum duration before timing out writes of the response. I
`TRAEFIK_GLOBAL_CHECKNEWVERSION`:
Periodically check if a new version has been released. (Default: ```false```)
`TRAEFIK_GLOBAL_INSECURESNI`:
Allow domain fronting. If the option is not specified, it will be disabled by default. (Default: ```false```)
`TRAEFIK_GLOBAL_SENDANONYMOUSUSAGE`:
Periodically send anonymous usage statistics. If the option is not specified, it will be enabled by default. (Default: ```false```)

1
docs/content/reference/static-configuration/file.toml
View file

@ -1,6 +1,7 @@
[global]
checkNewVersion = true
sendAnonymousUsage = true
insecureSNI = false
[serversTransport]
insecureSkipVerify = true

2
docs/content/reference/static-configuration/file.yaml
View file

@ -1,6 +1,8 @@
global:
checkNewVersion: true
sendAnonymousUsage: true
insecureSNI: false
serversTransport:
insecureSkipVerify: true
rootCAs:

22
docs/content/routing/routers/index.md
View file

@ -228,16 +228,18 @@ If the rule is verified, the router becomes active, calls middlewares, and then
The table below lists all the available matchers:
| Rule | Description |
|------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------|
| ```Headers(`key`, `value`)``` | Check if there is a key `key`defined in the headers, with the value `value` |
| ```HeadersRegexp(`key`, `regexp`)``` | Check if there is a key `key`defined in the headers, with a value that matches the regular expression `regexp` |
| ```Host(`example.com`, ...)``` | Check if the request domain targets one of the given `domains`. |
| ```HostRegexp(`example.com`, `{subdomain:[a-z]+}.example.com`, ...)``` | Check if the request domain matches the given `regexp`. |
| ```Method(`GET`, ...)``` | Check if the request method is one of the given `methods` (`GET`, `POST`, `PUT`, `DELETE`, `PATCH`) |
| ```Path(`/path`, `/articles/{cat:[a-z]+}/{id:[0-9]+}`, ...)``` | Match exact request path. It accepts a sequence of literal and regular expression paths. |
| ```PathPrefix(`/products/`, `/articles/{cat:[a-z]+}/{id:[0-9]+}`)``` | Match request prefix path. It accepts a sequence of literal and regular expression prefix paths. |
| ```Query(`foo=bar`, `bar=baz`)``` | Match Query String parameters. It accepts a sequence of key=value pairs. |
| Rule | Description |
|------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ```Headers(`key`, `value`)``` | Check if there is a key `key`defined in the headers, with the value `value` |
| ```HeadersRegexp(`key`, `regexp`)``` | Check if there is a key `key`defined in the headers, with a value that matches the regular expression `regexp` |
| ```Host(`example.com`, ...)``` | By default, is equivalent to `HostHeader` **AND** `HostSNI` rules. See [Domain Fronting](../../https/tls.md#domain-fronting) and the [migration guide](../../migration/v2.md#domain-fronting) for more details. |
| ```HostHeader(`example.com`, ...)``` | Check if the request domain (host header value) targets one of the given `domains`. |
| ```HostSNI(`example.com`, ...)``` | Check if the [Server Name Indication](https://en.wikipedia.org/wiki/Server_Name_Indication) corresponds to the given `domains`. |
| ```HostRegexp(`example.com`, `{subdomain:[a-z]+}.example.com`, ...)``` | Check if the request domain matches the given `regexp`. |
| ```Method(`GET`, ...)``` | Check if the request method is one of the given `methods` (`GET`, `POST`, `PUT`, `DELETE`, `PATCH`) |
| ```Path(`/path`, `/articles/{cat:[a-z]+}/{id:[0-9]+}`, ...)``` | Match exact request path. It accepts a sequence of literal and regular expression paths. |
| ```PathPrefix(`/products/`, `/articles/{cat:[a-z]+}/{id:[0-9]+}`)``` | Match request prefix path. It accepts a sequence of literal and regular expression prefix paths. |
| ```Query(`foo=bar`, `bar=baz`)``` | Match Query String parameters. It accepts a sequence of key=value pairs. |
!!! important "Regexp Syntax"

2
integration/fixtures/grpc/config.toml
View file

@ -22,7 +22,7 @@
[http.routers]
[http.routers.router1]
rule = "Host(`127.0.0.1`)"
rule = "Host(`localhost`)"
service = "service1"
[http.routers.router1.tls]

2
integration/fixtures/grpc/config_h2c_termination.toml
View file

@ -19,7 +19,7 @@
[http.routers]
[http.routers.router1]
rule = "Host(`127.0.0.1`)"
rule = "Host(`localhost`)"
service = "service1"
[http.routers.router1.tls]

2
integration/fixtures/grpc/config_insecure.toml
View file

@ -22,7 +22,7 @@
[http.routers]
[http.routers.router1]
rule = "Host(`127.0.0.1`)"
rule = "Host(`localhost`)"
service = "service1"
[http.routers.router1.tls]

2
integration/fixtures/grpc/config_retry.toml
View file

@ -22,7 +22,7 @@
[http.routers]
[http.routers.router1]
rule = "Host(`127.0.0.1`)"
rule = "Host(`localhost`)"
service = "service1"
middlewares = ["retryer"]
[http.routers.router1.tls]

14
integration/grpc_test.go
View file

@ -86,7 +86,7 @@ func starth2cGRPCServer(lis net.Listener, server *myserver) error {
func getHelloClientGRPC() (helloworld.GreeterClient, func() error, error) {
roots := x509.NewCertPool()
roots.AppendCertsFromPEM(LocalhostCert)
credsClient := credentials.NewClientTLSFromCert(roots, "")
credsClient := credentials.NewClientTLSFromCert(roots, "localhost")
conn, err := grpc.Dial("127.0.0.1:4443", grpc.WithTransportCredentials(credsClient))
if err != nil {
return nil, func() error { return nil }, err
@ -167,7 +167,7 @@ func (s *GRPCSuite) TestGRPC(c *check.C) {
defer cmd.Process.Kill()
// wait for Traefik
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 1*time.Second, try.BodyContains("Host(`127.0.0.1`)"))
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 1*time.Second, try.BodyContains("Host(`localhost`)"))
c.Assert(err, check.IsNil)
var response string
@ -247,7 +247,7 @@ func (s *GRPCSuite) TestGRPCh2cTermination(c *check.C) {
defer cmd.Process.Kill()
// wait for Traefik
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 1*time.Second, try.BodyContains("Host(`127.0.0.1`)"))
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 1*time.Second, try.BodyContains("Host(`localhost`)"))
c.Assert(err, check.IsNil)
var response string
@ -289,7 +289,7 @@ func (s *GRPCSuite) TestGRPCInsecure(c *check.C) {
defer cmd.Process.Kill()
// wait for Traefik
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 1*time.Second, try.BodyContains("Host(`127.0.0.1`)"))
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 1*time.Second, try.BodyContains("Host(`localhost`)"))
c.Assert(err, check.IsNil)
var response string
@ -336,7 +336,7 @@ func (s *GRPCSuite) TestGRPCBuffer(c *check.C) {
defer cmd.Process.Kill()
// wait for Traefik
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 1*time.Second, try.BodyContains("Host(`127.0.0.1`)"))
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 1*time.Second, try.BodyContains("Host(`localhost`)"))
c.Assert(err, check.IsNil)
var client helloworld.Greeter_StreamExampleClient
client, closer, err := callStreamExampleClientGRPC()
@ -395,7 +395,7 @@ func (s *GRPCSuite) TestGRPCBufferWithFlushInterval(c *check.C) {
defer cmd.Process.Kill()
// wait for Traefik
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 1*time.Second, try.BodyContains("Host(`127.0.0.1`)"))
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 1*time.Second, try.BodyContains("Host(`localhost`)"))
c.Assert(err, check.IsNil)
var client helloworld.Greeter_StreamExampleClient
@ -453,7 +453,7 @@ func (s *GRPCSuite) TestGRPCWithRetry(c *check.C) {
defer cmd.Process.Kill()
// wait for Traefik
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 1*time.Second, try.BodyContains("Host(`127.0.0.1`)"))
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 1*time.Second, try.BodyContains("Host(`localhost`)"))
c.Assert(err, check.IsNil)
var response string

1
pkg/config/static/static_config.go
View file

@ -79,6 +79,7 @@ type CertificateResolver struct {
type Global struct {
CheckNewVersion bool `description:"Periodically check if a new version has been released." json:"checkNewVersion,omitempty" toml:"checkNewVersion,omitempty" yaml:"checkNewVersion,omitempty" label:"allowEmpty" export:"true"`
SendAnonymousUsage bool `description:"Periodically send anonymous usage statistics. If the option is not specified, it will be enabled by default." json:"sendAnonymousUsage,omitempty" toml:"sendAnonymousUsage,omitempty" yaml:"sendAnonymousUsage,omitempty" label:"allowEmpty" export:"true"`
InsecureSNI bool `description:"Allow domain fronting. If the option is not specified, it will be disabled by default." json:"insecureSNI,omitempty" toml:"insecureSNI,omitempty" yaml:"insecureSNI,omitempty" label:"allowEmpty" export:"true"`
}
// ServersTransport options to configure communication between Traefik and the servers.

159
pkg/rules/rules.go
View file

@ -12,7 +12,9 @@ import (
)
var funcs = map[string]func(*mux.Route, ...string) error{
"Host": host,
"Host": hostSecure,
"HostHeader": host,
"HostSNI": hostSNI,
"HostRegexp": hostRegexp,
"Path": path,
"PathPrefix": pathPrefix,
@ -22,6 +24,18 @@ var funcs = map[string]func(*mux.Route, ...string) error{
"Query": query,
}
// EnableDomainFronting initialize the matcher functions to used on routers.
// InsecureSNI defines if the domain fronting is allowed.
func EnableDomainFronting(ok bool) {
if ok {
log.WithoutContext().Warn("With insecureSNI enabled, router rules do not prevent domain fronting techniques. Please use `HostHeader` and `HostSNI` rules if domain fronting is not desired.")
funcs["Host"] = host
return
}
funcs["Host"] = hostSecure
}
// Router handle routing with rules.
type Router struct {
*mux.Router
@ -98,46 +112,125 @@ func host(route *mux.Route, hosts ...string) error {
}
route.MatcherFunc(func(req *http.Request, _ *mux.RouteMatch) bool {
reqHost := requestdecorator.GetCanonizedHost(req.Context())
if len(reqHost) == 0 {
log.FromContext(req.Context()).Warnf("Could not retrieve CanonizedHost, rejecting %s", req.Host)
return false
}
return matchHost(req, true, hosts...)
})
return nil
}
flatH := requestdecorator.GetCNAMEFlatten(req.Context())
if len(flatH) > 0 {
for _, host := range hosts {
if strings.EqualFold(reqHost, host) || strings.EqualFold(flatH, host) {
return true
}
log.FromContext(req.Context()).Debugf("CNAMEFlattening: request %s which resolved to %s, is not matched to route %s", reqHost, flatH, host)
}
return false
}
func matchHost(req *http.Request, insecureSNI bool, hosts ...string) bool {
logger := log.FromContext(req.Context())
reqHost := requestdecorator.GetCanonizedHost(req.Context())
if len(reqHost) == 0 {
logger.Warnf("Could not retrieve CanonizedHost, rejecting %s", req.Host)
return false
}
flatH := requestdecorator.GetCNAMEFlatten(req.Context())
if len(flatH) > 0 {
for _, host := range hosts {
if reqHost == host {
if strings.EqualFold(reqHost, host) || strings.EqualFold(flatH, host) {
return true
}
// Check for match on trailing period on host
if last := len(host) - 1; last >= 0 && host[last] == '.' {
h := host[:last]
if reqHost == h {
return true
}
}
// Check for match on trailing period on request
if last := len(reqHost) - 1; last >= 0 && reqHost[last] == '.' {
h := reqHost[:last]
if h == host {
return true
}
}
logger.Debugf("CNAMEFlattening: request %s which resolved to %s, is not matched to route %s", reqHost, flatH, host)
}
return false
}
for _, host := range hosts {
if reqHost == host {
logHostSNI(insecureSNI, req, reqHost)
return true
}
// Check for match on trailing period on host
if last := len(host) - 1; last >= 0 && host[last] == '.' {
h := host[:last]
if reqHost == h {
logHostSNI(insecureSNI, req, reqHost)
return true
}
}
// Check for match on trailing period on request
if last := len(reqHost) - 1; last >= 0 && reqHost[last] == '.' {
h := reqHost[:last]
if h == host {
logHostSNI(insecureSNI, req, reqHost)
return true
}
}
}
return false
}
func logHostSNI(insecureSNI bool, req *http.Request, reqHost string) {
if insecureSNI && req.TLS != nil && !strings.EqualFold(reqHost, req.TLS.ServerName) {
log.FromContext(req.Context()).Debugf("Router reached with Host(%q) different from SNI(%q)", reqHost, req.TLS.ServerName)
}
}
func hostSNI(route *mux.Route, hosts ...string) error {
for i, host := range hosts {
hosts[i] = strings.ToLower(host)
}
route.MatcherFunc(func(req *http.Request, _ *mux.RouteMatch) bool {
return matchSNI(req, hosts...)
})
return nil
}
func matchSNI(req *http.Request, hosts ...string) bool {
if req.TLS == nil {
return true
}
if req.TLS.ServerName == "" {
return false
}
for _, host := range hosts {
if strings.EqualFold(req.TLS.ServerName, host) {
return true
}
// Check for match on trailing period on host
if last := len(host) - 1; last >= 0 && host[last] == '.' {
h := host[:last]
if strings.EqualFold(req.TLS.ServerName, h) {
return true
}
}
// Check for match on trailing period on request
if last := len(req.TLS.ServerName) - 1; last >= 0 && req.TLS.ServerName[last] == '.' {
h := req.TLS.ServerName[:last]
if strings.EqualFold(h, host) {
return true
}
}
}
return false
}
func hostSecure(route *mux.Route, hosts ...string) error {
for i, host := range hosts {
hosts[i] = strings.ToLower(host)
}
route.MatcherFunc(func(req *http.Request, _ *mux.RouteMatch) bool {
for _, host := range hosts {
if matchSNI(req, host) && matchHost(req, false, host) {
return true
}
}
return false
})
return nil
}

12
pkg/rules/rules_test.go
View file

@ -681,6 +681,18 @@ func TestParseDomains(t *testing.T) {
domain: []string{"foo.bar", "test.bar"},
errorExpected: false,
},
{
description: "Many host rules upper",
expression: "HOST(`foo.bar`,`test.bar`)",
domain: []string{"foo.bar", "test.bar"},
errorExpected: false,
},
{
description: "Many host rules lower",
expression: "host(`foo.bar`,`test.bar`)",
domain: []string{"foo.bar", "test.bar"},
errorExpected: false,
},
{
description: "No host rule",
expression: "Path(`/test`)",

230
pkg/server/router/router_test.go
View file

@ -2,6 +2,7 @@ package router
import (
"context"
"crypto/tls"
"io/ioutil"
"net/http"
"net/http/httptest"
@ -14,6 +15,7 @@ import (
"github.com/containous/traefik/v2/pkg/middlewares/accesslog"
"github.com/containous/traefik/v2/pkg/middlewares/requestdecorator"
"github.com/containous/traefik/v2/pkg/responsemodifiers"
"github.com/containous/traefik/v2/pkg/rules"
"github.com/containous/traefik/v2/pkg/server/middleware"
"github.com/containous/traefik/v2/pkg/server/service"
"github.com/containous/traefik/v2/pkg/testhelpers"
@ -25,6 +27,8 @@ import (
func TestRouterManager_Get(t *testing.T) {
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {}))
t.Cleanup(func() { server.Close() })
type expectedResult struct {
StatusCode int
RequestHeaders map[string]string
@ -310,9 +314,230 @@ func TestRouterManager_Get(t *testing.T) {
}
}
func TestRouterManager_SNI(t *testing.T) {
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {}))
t.Cleanup(func() { server.Close() })
type expectedResult struct {
StatusCode int
RequestHeaders map[string]string
}
testCases := []struct {
desc string
routersConfig map[string]*dynamic.Router
serviceConfig map[string]*dynamic.Service
middlewaresConfig map[string]*dynamic.Middleware
entryPoint string
sni string
insecureSNI bool
expected expectedResult
}{
{
desc: "Insecure SNI without TLS",
routersConfig: map[string]*dynamic.Router{
"foo@provider-1": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
Priority: 0,
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service@provider-1": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
insecureSNI: true,
entryPoint: "web",
expected: expectedResult{StatusCode: http.StatusOK},
},
{
desc: "Secure SNI without TLS",
routersConfig: map[string]*dynamic.Router{
"foo@provider-1": {
EntryPoints: []string{"web"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
Priority: 0,
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service@provider-1": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
entryPoint: "web",
expected: expectedResult{StatusCode: http.StatusOK},
},
{
desc: "Secure SNI with TLS without sni",
routersConfig: map[string]*dynamic.Router{
"foo@provider-1": {
EntryPoints: []string{"websecure"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
Priority: 0,
TLS: &dynamic.RouterTLSConfig{},
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service@provider-1": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
entryPoint: "websecure",
expected: expectedResult{StatusCode: http.StatusNotFound},
},
{
desc: "Secure SNI with TLS with sni request",
routersConfig: map[string]*dynamic.Router{
"foo@provider-1": {
EntryPoints: []string{"websecure"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
Priority: 0,
TLS: &dynamic.RouterTLSConfig{},
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service@provider-1": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
entryPoint: "websecure",
sni: "foo.bar",
expected: expectedResult{StatusCode: http.StatusOK},
},
{
desc: "Insecure SNI with TLS without sni",
routersConfig: map[string]*dynamic.Router{
"foo@provider-1": {
EntryPoints: []string{"websecure"},
Service: "foo-service",
Rule: "Host(`foo.bar`)",
Priority: 0,
TLS: &dynamic.RouterTLSConfig{},
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service@provider-1": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
entryPoint: "websecure",
insecureSNI: true,
expected: expectedResult{StatusCode: http.StatusOK},
},
{
desc: "Secure SNI with TLS with sni uppercase",
routersConfig: map[string]*dynamic.Router{
"foo@provider-1": {
EntryPoints: []string{"websecure"},
Service: "foo-service",
Rule: "Host(`Foo.bar`)",
Priority: 0,
TLS: &dynamic.RouterTLSConfig{},
},
},
serviceConfig: map[string]*dynamic.Service{
"foo-service@provider-1": {
LoadBalancer: &dynamic.ServersLoadBalancer{
Servers: []dynamic.Server{
{
URL: server.URL,
},
},
},
},
},
entryPoint: "websecure",
sni: "Foo.bar",
expected: expectedResult{StatusCode: http.StatusOK},
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
rtConf := runtime.NewConfig(dynamic.Configuration{
HTTP: &dynamic.HTTPConfiguration{
Services: test.serviceConfig,
Routers: test.routersConfig,
Middlewares: test.middlewaresConfig,
},
})
rules.EnableDomainFronting(test.insecureSNI)
serviceManager := service.NewManager(rtConf.Services, http.DefaultTransport, nil, nil)
middlewaresBuilder := middleware.NewBuilder(rtConf.Middlewares, serviceManager)
responseModifierFactory := responsemodifiers.NewBuilder(rtConf.Middlewares)
chainBuilder := middleware.NewChainBuilder(static.Configuration{}, nil, nil)
routerManager := NewManager(rtConf, serviceManager, middlewaresBuilder, responseModifierFactory, chainBuilder)
handlers := routerManager.BuildHandlers(context.Background(), []string{test.entryPoint}, test.entryPoint == "websecure")
w := httptest.NewRecorder()
req := testhelpers.MustNewRequest(http.MethodGet, "https://foo.bar/", nil)
if test.entryPoint == "websecure" {
req.TLS = &tls.ConnectionState{}
if test.sni != "" {
req.TLS.ServerName = test.sni
}
}
reqHost := requestdecorator.New(nil)
reqHost.ServeHTTP(w, req, handlers[test.entryPoint].ServeHTTP)
assert.Equal(t, test.expected.StatusCode, w.Code)
for key, value := range test.expected.RequestHeaders {
assert.Equal(t, value, req.Header.Get(key))
}
})
}
}
func TestAccessLog(t *testing.T) {
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {}))
t.Cleanup(func() { server.Close() })
testCases := []struct {
desc string
routersConfig map[string]*dynamic.Router
@ -683,7 +908,6 @@ func TestRuntimeConfiguration(t *testing.T) {
chainBuilder := middleware.NewChainBuilder(static.Configuration{}, nil, nil)
routerManager := NewManager(rtConf, serviceManager, middlewaresBuilder, responseModifierFactory, chainBuilder)
_ = routerManager.BuildHandlers(context.Background(), entryPoints, false)
// even though rtConf was passed by argument to the manager builders above,
@ -778,13 +1002,15 @@ type staticTransport struct {
res *http.Response
}
func (t *staticTransport) RoundTrip(r *http.Request) (*http.Response, error) {
func (t *staticTransport) RoundTrip(_ *http.Request) (*http.Response, error) {
return t.res, nil
}
func BenchmarkRouterServe(b *testing.B) {
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {}))
b.Cleanup(func() { server.Close() })
res := &http.Response{
StatusCode: 200,
Body: ioutil.NopCloser(strings.NewReader("")),

2
pkg/tcp/router.go
View file

@ -102,7 +102,7 @@ func (r *Router) AddRouteTLS(sniHost string, target Handler, config *tls.Config)
})
}
// AddRouteHTTPTLS defines a handler for a given sniHost and sets the matching tlsConfig.
// AddRouteHTTPTLS defines the matching tlsConfig for a given sniHost.
func (r *Router) AddRouteHTTPTLS(sniHost string, config *tls.Config) {
if r.hostHTTPTLSConfig == nil {
r.hostHTTPTLSConfig = map[string]*tls.Config{}

2
traefik.sample.toml
View file

@ -12,6 +12,8 @@
[global]
checkNewVersion = true
sendAnonymousUsage = true
# Enabling domain fronting
# insecureSNI = true
################################################################
# Entrypoints configuration