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dex/server/server_test.go

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package server
import (
"crypto/rsa"
"crypto/x509"
"encoding/pem"
"errors"
"fmt"
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"net/http"
"net/http/httptest"
"net/http/httputil"
"net/url"
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"reflect"
"sort"
"strings"
"sync"
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"testing"
"time"
"github.com/ericchiang/oidc"
"github.com/kylelemons/godebug/pretty"
"golang.org/x/crypto/bcrypt"
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"golang.org/x/net/context"
"golang.org/x/oauth2"
"github.com/coreos/dex/connector"
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"github.com/coreos/dex/connector/mock"
"github.com/coreos/dex/storage"
"github.com/coreos/dex/storage/memory"
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)
func mustLoad(s string) *rsa.PrivateKey {
block, _ := pem.Decode([]byte(s))
if block == nil {
panic("no pem data found")
}
key, err := x509.ParsePKCS1PrivateKey(block.Bytes)
if err != nil {
panic(err)
}
return key
}
var testKey = mustLoad(`-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----`)
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func newTestServer(ctx context.Context, t *testing.T, updateConfig func(c *Config)) (*httptest.Server, *Server) {
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var server *Server
s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
server.ServeHTTP(w, r)
}))
config := Config{
Issuer: s.URL,
Storage: memory.New(),
Connectors: []Connector{
{
ID: "mock",
DisplayName: "Mock",
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Connector: mock.NewCallbackConnector(),
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},
},
}
if updateConfig != nil {
updateConfig(&config)
}
s.URL = config.Issuer
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var err error
if server, err = newServer(ctx, config, staticRotationStrategy(testKey)); err != nil {
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t.Fatal(err)
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}
server.skipApproval = true // Don't prompt for approval, just immediately redirect with code.
return s, server
}
func TestNewTestServer(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
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newTestServer(ctx, t, nil)
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}
func TestDiscovery(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
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httpServer, _ := newTestServer(ctx, t, func(c *Config) {
c.Issuer = c.Issuer + "/non-root-path"
})
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defer httpServer.Close()
p, err := oidc.NewProvider(ctx, httpServer.URL)
if err != nil {
t.Fatalf("failed to get provider: %v", err)
}
required := []struct {
name, val string
}{
{"issuer", p.Issuer},
{"authorization_endpoint", p.AuthURL},
{"token_endpoint", p.TokenURL},
{"jwks_uri", p.JWKSURL},
}
for _, field := range required {
if field.val == "" {
t.Errorf("server discovery is missing required field %q", field.name)
}
}
}
func TestOAuth2CodeFlow(t *testing.T) {
clientID := "testclient"
clientSecret := "testclientsecret"
requestedScopes := []string{oidc.ScopeOpenID, "email", "offline_access"}
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tests := []struct {
name string
handleToken func(context.Context, *oidc.Provider, *oauth2.Config, *oauth2.Token) error
}{
{
name: "verify ID Token",
handleToken: func(ctx context.Context, p *oidc.Provider, config *oauth2.Config, token *oauth2.Token) error {
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idToken, ok := token.Extra("id_token").(string)
if !ok {
return fmt.Errorf("no id token found")
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}
if _, err := p.NewVerifier(ctx).Verify(idToken); err != nil {
return fmt.Errorf("failed to verify id token: %v", err)
}
return nil
},
},
{
name: "refresh token",
handleToken: func(ctx context.Context, p *oidc.Provider, config *oauth2.Config, token *oauth2.Token) error {
// have to use time.Now because the OAuth2 package uses it.
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token.Expiry = time.Now().Add(time.Second * -10)
if token.Valid() {
return errors.New("token shouldn't be valid")
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}
newToken, err := config.TokenSource(ctx, token).Token()
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if err != nil {
return fmt.Errorf("failed to refresh token: %v", err)
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}
if token.RefreshToken == newToken.RefreshToken {
return fmt.Errorf("old refresh token was the same as the new token %q", token.RefreshToken)
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}
return nil
},
},
{
name: "refresh with explicit scopes",
handleToken: func(ctx context.Context, p *oidc.Provider, config *oauth2.Config, token *oauth2.Token) error {
v := url.Values{}
v.Add("client_id", clientID)
v.Add("client_secret", clientSecret)
v.Add("grant_type", "refresh_token")
v.Add("refresh_token", token.RefreshToken)
v.Add("scope", strings.Join(requestedScopes, " "))
resp, err := http.PostForm(p.TokenURL, v)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
dump, err := httputil.DumpResponse(resp, true)
if err != nil {
panic(err)
}
return fmt.Errorf("unexpected response: %s", dump)
}
return nil
},
},
{
name: "refresh with extra spaces",
handleToken: func(ctx context.Context, p *oidc.Provider, config *oauth2.Config, token *oauth2.Token) error {
v := url.Values{}
v.Add("client_id", clientID)
v.Add("client_secret", clientSecret)
v.Add("grant_type", "refresh_token")
v.Add("refresh_token", token.RefreshToken)
// go-oidc adds an additional space before scopes when refreshing.
// Since we support that client we choose to be more relaxed about
// scope parsing, disregarding extra whitespace.
v.Add("scope", " "+strings.Join(requestedScopes, " "))
resp, err := http.PostForm(p.TokenURL, v)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
dump, err := httputil.DumpResponse(resp, true)
if err != nil {
panic(err)
}
return fmt.Errorf("unexpected response: %s", dump)
}
return nil
},
},
{
name: "refresh with unauthorized scopes",
handleToken: func(ctx context.Context, p *oidc.Provider, config *oauth2.Config, token *oauth2.Token) error {
v := url.Values{}
v.Add("client_id", clientID)
v.Add("client_secret", clientSecret)
v.Add("grant_type", "refresh_token")
v.Add("refresh_token", token.RefreshToken)
// Request a scope that wasn't requestd initially.
v.Add("scope", strings.Join(append(requestedScopes, "profile"), " "))
resp, err := http.PostForm(p.TokenURL, v)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode == http.StatusOK {
dump, err := httputil.DumpResponse(resp, true)
if err != nil {
panic(err)
}
return fmt.Errorf("unexpected response: %s", dump)
}
return nil
},
},
}
for _, tc := range tests {
func() {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
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httpServer, s := newTestServer(ctx, t, func(c *Config) {
c.Issuer = c.Issuer + "/non-root-path"
})
defer httpServer.Close()
p, err := oidc.NewProvider(ctx, httpServer.URL)
if err != nil {
t.Fatalf("failed to get provider: %v", err)
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}
var (
reqDump, respDump []byte
gotCode bool
state = "a_state"
)
defer func() {
if !gotCode {
t.Errorf("never got a code in callback\n%s\n%s", reqDump, respDump)
}
}()
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var oauth2Config *oauth2.Config
oauth2Server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.URL.Path == "/callback" {
q := r.URL.Query()
if errType := q.Get("error"); errType != "" {
if desc := q.Get("error_description"); desc != "" {
t.Errorf("got error from server %s: %s", errType, desc)
} else {
t.Errorf("got error from server %s", errType)
}
w.WriteHeader(http.StatusInternalServerError)
return
}
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if code := q.Get("code"); code != "" {
gotCode = true
token, err := oauth2Config.Exchange(ctx, code)
if err != nil {
t.Errorf("failed to exchange code for token: %v", err)
return
}
err = tc.handleToken(ctx, p, oauth2Config, token)
if err != nil {
t.Errorf("%s: %v", tc.name, err)
}
return
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}
if gotState := q.Get("state"); gotState != state {
t.Errorf("state did not match, want=%q got=%q", state, gotState)
}
w.WriteHeader(http.StatusOK)
return
}
http.Redirect(w, r, oauth2Config.AuthCodeURL(state), http.StatusSeeOther)
}))
defer oauth2Server.Close()
redirectURL := oauth2Server.URL + "/callback"
client := storage.Client{
ID: clientID,
Secret: clientSecret,
RedirectURIs: []string{redirectURL},
}
if err := s.storage.CreateClient(client); err != nil {
t.Fatalf("failed to create client: %v", err)
}
oauth2Config = &oauth2.Config{
ClientID: client.ID,
ClientSecret: client.Secret,
Endpoint: p.Endpoint(),
Scopes: requestedScopes,
RedirectURL: redirectURL,
}
resp, err := http.Get(oauth2Server.URL + "/login")
if err != nil {
t.Fatalf("get failed: %v", err)
}
if reqDump, err = httputil.DumpRequest(resp.Request, false); err != nil {
t.Fatal(err)
}
if respDump, err = httputil.DumpResponse(resp, true); err != nil {
t.Fatal(err)
}
}()
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}
}
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type nonceSource struct {
nonce string
once sync.Once
}
func (n *nonceSource) ClaimNonce(nonce string) error {
if n.nonce != nonce {
return errors.New("invalid nonce")
}
ok := false
n.once.Do(func() { ok = true })
if !ok {
return errors.New("invalid nonce")
}
return nil
}
func TestOAuth2ImplicitFlow(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
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httpServer, s := newTestServer(ctx, t, func(c *Config) {
// Enable support for the implicit flow.
c.SupportedResponseTypes = []string{"code", "token"}
})
defer httpServer.Close()
p, err := oidc.NewProvider(ctx, httpServer.URL)
if err != nil {
t.Fatalf("failed to get provider: %v", err)
}
var (
reqDump, respDump []byte
gotIDToken bool
state = "a_state"
nonce = "a_nonce"
)
defer func() {
if !gotIDToken {
t.Errorf("never got a id token in fragment\n%s\n%s", reqDump, respDump)
}
}()
var oauth2Config *oauth2.Config
oauth2Server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.URL.Path == "/callback" {
q := r.URL.Query()
if errType := q.Get("error"); errType != "" {
if desc := q.Get("error_description"); desc != "" {
t.Errorf("got error from server %s: %s", errType, desc)
} else {
t.Errorf("got error from server %s", errType)
}
w.WriteHeader(http.StatusInternalServerError)
return
}
// Fragment is checked by the client since net/http servers don't preserve URL fragments.
// E.g.
//
// r.URL.Fragment
//
// Will always be empty.
w.WriteHeader(http.StatusOK)
return
}
u := oauth2Config.AuthCodeURL(state, oauth2.SetAuthURLParam("response_type", "token"), oidc.Nonce(nonce))
http.Redirect(w, r, u, http.StatusSeeOther)
}))
defer oauth2Server.Close()
redirectURL := oauth2Server.URL + "/callback"
client := storage.Client{
ID: "testclient",
Secret: "testclientsecret",
RedirectURIs: []string{redirectURL},
}
if err := s.storage.CreateClient(client); err != nil {
t.Fatalf("failed to create client: %v", err)
}
src := &nonceSource{nonce: nonce}
idTokenVerifier := p.NewVerifier(ctx, oidc.VerifyAudience(client.ID), oidc.VerifyNonce(src))
oauth2Config = &oauth2.Config{
ClientID: client.ID,
ClientSecret: client.Secret,
Endpoint: p.Endpoint(),
Scopes: []string{oidc.ScopeOpenID, "profile", "email", "offline_access"},
RedirectURL: redirectURL,
}
checkIDToken := func(u *url.URL) error {
if u.Fragment == "" {
return fmt.Errorf("url has no fragment: %s", u)
}
v, err := url.ParseQuery(u.Fragment)
if err != nil {
return fmt.Errorf("failed to parse fragment: %v", err)
}
idToken := v.Get("id_token")
if idToken == "" {
return errors.New("no id_token in fragment")
}
if _, err := idTokenVerifier.Verify(idToken); err != nil {
return fmt.Errorf("failed to verify id_token: %v", err)
}
return nil
}
httpClient := &http.Client{
// net/http servers don't preserve URL fragments when passing the request to
// handlers. The only way to get at that values is to check the redirect on
// the client side.
CheckRedirect: func(req *http.Request, via []*http.Request) error {
if len(via) > 10 {
return errors.New("too many redirects")
}
// If we're being redirected back to the client server, inspect the URL fragment
// for an ID Token.
u := req.URL.String()
if strings.HasPrefix(u, oauth2Server.URL) {
if err := checkIDToken(req.URL); err == nil {
gotIDToken = true
} else {
t.Error(err)
}
}
return nil
},
}
resp, err := httpClient.Get(oauth2Server.URL + "/login")
if err != nil {
t.Fatalf("get failed: %v", err)
}
if reqDump, err = httputil.DumpRequest(resp.Request, false); err != nil {
t.Fatal(err)
}
if respDump, err = httputil.DumpResponse(resp, true); err != nil {
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t.Fatal(err)
}
}
func TestCrossClientScopes(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
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httpServer, s := newTestServer(ctx, t, func(c *Config) {
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c.Issuer = c.Issuer + "/non-root-path"
})
defer httpServer.Close()
p, err := oidc.NewProvider(ctx, httpServer.URL)
if err != nil {
t.Fatalf("failed to get provider: %v", err)
}
var (
reqDump, respDump []byte
gotCode bool
state = "a_state"
)
defer func() {
if !gotCode {
t.Errorf("never got a code in callback\n%s\n%s", reqDump, respDump)
}
}()
testClientID := "testclient"
peerID := "peer"
var oauth2Config *oauth2.Config
oauth2Server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.URL.Path == "/callback" {
q := r.URL.Query()
if errType := q.Get("error"); errType != "" {
if desc := q.Get("error_description"); desc != "" {
t.Errorf("got error from server %s: %s", errType, desc)
} else {
t.Errorf("got error from server %s", errType)
}
w.WriteHeader(http.StatusInternalServerError)
return
}
if code := q.Get("code"); code != "" {
gotCode = true
token, err := oauth2Config.Exchange(ctx, code)
if err != nil {
t.Errorf("failed to exchange code for token: %v", err)
return
}
rawIDToken, ok := token.Extra("id_token").(string)
if !ok {
t.Errorf("no id token found: %v", err)
return
}
idToken, err := p.NewVerifier(ctx).Verify(rawIDToken)
if err != nil {
t.Errorf("failed to parse ID Token: %v", err)
return
}
sort.Strings(idToken.Audience)
expAudience := []string{peerID, testClientID}
if !reflect.DeepEqual(idToken.Audience, expAudience) {
t.Errorf("expected audience %q, got %q", expAudience, idToken.Audience)
}
}
if gotState := q.Get("state"); gotState != state {
t.Errorf("state did not match, want=%q got=%q", state, gotState)
}
w.WriteHeader(http.StatusOK)
return
}
http.Redirect(w, r, oauth2Config.AuthCodeURL(state), http.StatusSeeOther)
}))
defer oauth2Server.Close()
redirectURL := oauth2Server.URL + "/callback"
client := storage.Client{
ID: testClientID,
Secret: "testclientsecret",
RedirectURIs: []string{redirectURL},
}
if err := s.storage.CreateClient(client); err != nil {
t.Fatalf("failed to create client: %v", err)
}
peer := storage.Client{
ID: peerID,
Secret: "foobar",
TrustedPeers: []string{"testclient"},
}
if err := s.storage.CreateClient(peer); err != nil {
t.Fatalf("failed to create client: %v", err)
}
oauth2Config = &oauth2.Config{
ClientID: client.ID,
ClientSecret: client.Secret,
Endpoint: p.Endpoint(),
Scopes: []string{
oidc.ScopeOpenID, "profile", "email",
"audience:server:client_id:" + client.ID,
"audience:server:client_id:" + peer.ID,
},
RedirectURL: redirectURL,
}
resp, err := http.Get(oauth2Server.URL + "/login")
if err != nil {
t.Fatalf("get failed: %v", err)
}
if reqDump, err = httputil.DumpRequest(resp.Request, false); err != nil {
t.Fatal(err)
}
if respDump, err = httputil.DumpResponse(resp, true); err != nil {
t.Fatal(err)
}
}
func TestPasswordDB(t *testing.T) {
s := memory.New()
conn := newPasswordDB(s)
defer conn.Close()
pw := "hi"
h, err := bcrypt.GenerateFromPassword([]byte(pw), bcrypt.MinCost)
if err != nil {
t.Fatal(err)
}
s.CreatePassword(storage.Password{
Email: "jane@example.com",
Username: "jane",
UserID: "foobar",
Hash: h,
})
tests := []struct {
name string
username string
password string
wantIdentity connector.Identity
wantInvalid bool
wantErr bool
}{
{
name: "valid password",
username: "jane@example.com",
password: pw,
wantIdentity: connector.Identity{
Email: "jane@example.com",
Username: "jane",
UserID: "foobar",
EmailVerified: true,
},
},
{
name: "unknown user",
username: "john@example.com",
password: pw,
wantInvalid: true,
},
{
name: "invalid password",
username: "jane@example.com",
password: "not the correct password",
wantInvalid: true,
},
}
for _, tc := range tests {
ident, valid, err := conn.Login(tc.username, tc.password)
if err != nil {
if !tc.wantErr {
t.Errorf("%s: %v", tc.name, err)
}
continue
}
if tc.wantErr {
t.Errorf("%s: expected error", tc.name)
continue
}
if !valid {
if !tc.wantInvalid {
t.Errorf("%s: expected valid password", tc.name)
}
continue
}
if tc.wantInvalid {
t.Errorf("%s: expected invalid password", tc.name)
continue
}
if diff := pretty.Compare(tc.wantIdentity, ident); diff != "" {
t.Errorf("%s: %s", tc.name, diff)
}
}
}
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type storageWithKeysTrigger struct {
storage.Storage
f func()
}
func (s storageWithKeysTrigger) GetKeys() (storage.Keys, error) {
s.f()
return s.Storage.GetKeys()
}
func TestKeyCacher(t *testing.T) {
tNow := time.Now()
now := func() time.Time { return tNow }
s := memory.New()
tests := []struct {
before func()
wantCallToStorage bool
}{
{
before: func() {},
wantCallToStorage: true,
},
{
before: func() {
s.UpdateKeys(func(old storage.Keys) (storage.Keys, error) {
old.NextRotation = tNow.Add(time.Minute)
return old, nil
})
},
wantCallToStorage: true,
},
{
before: func() {},
wantCallToStorage: false,
},
{
before: func() {
tNow = tNow.Add(time.Hour)
},
wantCallToStorage: true,
},
{
before: func() {
tNow = tNow.Add(time.Hour)
s.UpdateKeys(func(old storage.Keys) (storage.Keys, error) {
old.NextRotation = tNow.Add(time.Minute)
return old, nil
})
},
wantCallToStorage: true,
},
{
before: func() {},
wantCallToStorage: false,
},
}
gotCall := false
s = newKeyCacher(storageWithKeysTrigger{s, func() { gotCall = true }}, now)
for i, tc := range tests {
gotCall = false
tc.before()
s.GetKeys()
if gotCall != tc.wantCallToStorage {
t.Errorf("case %d: expected call to storage=%t got call to storage=%t", i, tc.wantCallToStorage, gotCall)
}
}
}