ContainerImage.Pinniped/internal/oidcclient/login/login_test.go
Matt Moyer 67b692b11f
Implement the rest of an OIDC client CLI library.
Signed-off-by: Matt Moyer <moyerm@vmware.com>
2020-10-12 16:41:46 -05:00

421 lines
15 KiB
Go

// Copyright 2020 the Pinniped contributors. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
package login
import (
"context"
"encoding/json"
"fmt"
"net/http"
"net/http/httptest"
"net/url"
"testing"
"time"
"github.com/coreos/go-oidc"
"github.com/golang/mock/gomock"
"github.com/stretchr/testify/require"
"golang.org/x/oauth2"
"gopkg.in/square/go-jose.v2"
"go.pinniped.dev/internal/httputil/httperr"
"go.pinniped.dev/internal/mocks/mockkeyset"
"go.pinniped.dev/internal/oidcclient/nonce"
"go.pinniped.dev/internal/oidcclient/pkce"
"go.pinniped.dev/internal/oidcclient/state"
)
func TestRun(t *testing.T) {
time1 := time.Date(3020, 10, 12, 13, 14, 15, 16, time.UTC)
testToken := Token{
Token: &oauth2.Token{
AccessToken: "test-access-token",
RefreshToken: "test-refresh-token",
Expiry: time1.Add(1 * time.Minute),
},
IDToken: "test-id-token",
IDTokenExpiry: time1.Add(2 * time.Minute),
}
_ = testToken
// Start a test server that returns 500 errors
errorServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
http.Error(w, "some discovery error", http.StatusInternalServerError)
}))
t.Cleanup(errorServer.Close)
// Start a test server that returns a real keyset
providerMux := http.NewServeMux()
successServer := httptest.NewServer(providerMux)
t.Cleanup(successServer.Close)
providerMux.HandleFunc("/.well-known/openid-configuration", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("content-type", "application/json")
type providerJSON struct {
Issuer string `json:"issuer"`
AuthURL string `json:"authorization_endpoint"`
TokenURL string `json:"token_endpoint"`
JWKSURL string `json:"jwks_uri"`
}
_ = json.NewEncoder(w).Encode(&providerJSON{
Issuer: successServer.URL,
AuthURL: successServer.URL + "/authorize",
TokenURL: successServer.URL + "/token",
JWKSURL: successServer.URL + "/keys",
})
})
tests := []struct {
name string
opt func(t *testing.T) Option
issuer string
clientID string
wantErr string
wantToken *Token
}{
{
name: "option error",
opt: func(t *testing.T) Option {
return func(h *handlerState) error {
return fmt.Errorf("some option error")
}
},
wantErr: "some option error",
},
{
name: "error generating state",
opt: func(t *testing.T) Option {
return func(h *handlerState) error {
h.generateState = func() (state.State, error) { return "", fmt.Errorf("some error generating state") }
return nil
}
},
wantErr: "some error generating state",
},
{
name: "error generating nonce",
opt: func(t *testing.T) Option {
return func(h *handlerState) error {
h.generateNonce = func() (nonce.Nonce, error) { return "", fmt.Errorf("some error generating nonce") }
return nil
}
},
wantErr: "some error generating nonce",
},
{
name: "error generating PKCE",
opt: func(t *testing.T) Option {
return func(h *handlerState) error {
h.generatePKCE = func() (pkce.Code, error) { return "", fmt.Errorf("some error generating PKCE") }
return nil
}
},
wantErr: "some error generating PKCE",
},
{
name: "discovery failure",
opt: func(t *testing.T) Option {
return func(h *handlerState) error { return nil }
},
issuer: errorServer.URL,
wantErr: fmt.Sprintf("could not perform OIDC discovery for %q: 500 Internal Server Error: some discovery error\n", errorServer.URL),
},
{
name: "listen failure",
opt: func(t *testing.T) Option {
return func(h *handlerState) error {
h.listenAddr = "invalid-listen-address"
return nil
}
},
issuer: successServer.URL,
wantErr: "could not open callback listener: listen tcp: address invalid-listen-address: missing port in address",
},
{
name: "browser open failure",
opt: func(t *testing.T) Option {
return WithBrowserOpen(func(url string) error {
return fmt.Errorf("some browser open error")
})
},
issuer: successServer.URL,
wantErr: "could not open browser: some browser open error",
},
{
name: "timeout waiting for callback",
opt: func(t *testing.T) Option {
return func(h *handlerState) error {
ctx, cancel := context.WithCancel(h.ctx)
h.ctx = ctx
h.openURL = func(_ string) error {
cancel()
return nil
}
return nil
}
},
issuer: successServer.URL,
wantErr: "timed out waiting for token callback: context canceled",
},
{
name: "callback returns error",
opt: func(t *testing.T) Option {
return func(h *handlerState) error {
h.openURL = func(_ string) error {
go func() {
h.callbacks <- callbackResult{err: fmt.Errorf("some callback error")}
}()
return nil
}
return nil
}
},
issuer: successServer.URL,
wantErr: "error handling callback: some callback error",
},
{
name: "callback returns success",
clientID: "test-client-id",
opt: func(t *testing.T) Option {
return func(h *handlerState) error {
h.generateState = func() (state.State, error) { return "test-state", nil }
h.generatePKCE = func() (pkce.Code, error) { return "test-pkce", nil }
h.generateNonce = func() (nonce.Nonce, error) { return "test-nonce", nil }
h.openURL = func(actualURL string) error {
parsedActualURL, err := url.Parse(actualURL)
require.NoError(t, err)
actualParams := parsedActualURL.Query()
require.Contains(t, actualParams.Get("redirect_uri"), "http://127.0.0.1:")
actualParams.Del("redirect_uri")
require.Equal(t, url.Values{
// This is the PKCE challenge which is calculated as base64(sha256("test-pkce")). For example:
// $ echo -n test-pkce | shasum -a 256 | cut -d" " -f1 | xxd -r -p | base64 | cut -d"=" -f1
// VVaezYqum7reIhoavCHD1n2d+piN3r/mywoYj7fCR7g
"code_challenge": []string{"VVaezYqum7reIhoavCHD1n2d-piN3r_mywoYj7fCR7g"},
"code_challenge_method": []string{"S256"},
"response_type": []string{"code"},
"scope": []string{"test-scope"},
"nonce": []string{"test-nonce"},
"state": []string{"test-state"},
"access_type": []string{"offline"},
"client_id": []string{"test-client-id"},
}, actualParams)
parsedActualURL.RawQuery = ""
require.Equal(t, successServer.URL+"/authorize", parsedActualURL.String())
go func() {
h.callbacks <- callbackResult{token: &testToken}
}()
return nil
}
return nil
}
},
issuer: successServer.URL,
wantToken: &testToken,
},
}
for _, tt := range tests {
tt := tt
t.Run(tt.name, func(t *testing.T) {
tok, err := Run(tt.issuer, tt.clientID,
WithContext(context.Background()),
WithListenPort(0),
WithScopes([]string{"test-scope"}),
tt.opt(t),
)
if tt.wantErr != "" {
require.EqualError(t, err, tt.wantErr)
require.Nil(t, tok)
return
}
require.Equal(t, tt.wantToken, tok)
})
}
}
func TestHandleAuthCodeCallback(t *testing.T) {
tests := []struct {
name string
method string
query string
returnIDTok string
wantErr string
wantHTTPStatus int
}{
{
name: "wrong method",
method: "POST",
query: "",
wantErr: "wanted GET",
wantHTTPStatus: http.StatusMethodNotAllowed,
},
{
name: "invalid state",
query: "state=invalid",
wantErr: "missing or invalid state parameter",
wantHTTPStatus: http.StatusForbidden,
},
{
name: "error code from provider",
query: "state=test-state&error=some_error",
wantErr: `login failed with code "some_error"`,
wantHTTPStatus: http.StatusBadRequest,
},
{
name: "invalid code",
query: "state=test-state&code=invalid",
wantErr: "could not complete code exchange: oauth2: cannot fetch token: 403 Forbidden\nResponse: invalid authorization code\n",
wantHTTPStatus: http.StatusBadRequest,
},
{
name: "missing ID token",
query: "state=test-state&code=valid",
returnIDTok: "",
wantErr: "received response missing ID token",
wantHTTPStatus: http.StatusBadRequest,
},
{
name: "invalid ID token",
query: "state=test-state&code=valid",
returnIDTok: "invalid-jwt",
wantErr: "received invalid ID token: oidc: malformed jwt: square/go-jose: compact JWS format must have three parts",
wantHTTPStatus: http.StatusBadRequest,
},
{
name: "invalid access token hash",
query: "state=test-state&code=valid",
// Test JWT generated with https://smallstep.com/docs/cli/crypto/jwt/:
// step crypto keypair key.pub key.priv --kty RSA --no-password --insecure --force && echo '{"at_hash": "invalid-at-hash"}' | step crypto jwt sign --key key.priv --aud test-client-id --sub test-user --subtle --kid="test-kid" --jti="test-jti"
returnIDTok: "eyJhbGciOiJSUzI1NiIsImtpZCI6InRlc3Qta2lkIiwidHlwIjoiSldUIn0.eyJhdF9oYXNoIjoiaW52YWxpZC1hdC1oYXNoIiwiYXVkIjoidGVzdC1jbGllbnQtaWQiLCJpYXQiOjE2MDIyODM3OTEsImp0aSI6InRlc3QtanRpIiwibmJmIjoxNjAyMjgzNzkxLCJzdWIiOiJ0ZXN0LXVzZXIifQ.jryXr4jiwcf79wBLaHpjdclEYHoUFGhvTu95QyA6Hnk9NQ0x1vsWYurtj7a8uKydNPryC_HNZi9QTAE_tRIJjycseog3695-5y4B4EZlqL-a94rdOtffuF2O_lnPbKvoja9EKNrp0kLBCftFRHhLAEwuP0N9E5padZwPpIGK0yE_JqljnYgCySvzsQu7tasR38yaULny13h3mtp2WRHPG5DrLyuBuF8Z01hSgRi5hGcVpgzTwBgV5-eMaSUCUo-ZDkqUsLQI6dVlaikCSKYZRb53HeexH0tB_R9PJJHY7mIr-rS76kkQEx9pLuVnheIH9Oc6zbdYWg-zWMijopA8Pg",
wantErr: "received invalid ID token: access token hash does not match value in ID token",
wantHTTPStatus: http.StatusBadRequest,
},
{
name: "invalid nonce",
query: "state=test-state&code=valid",
// Test JWT generated with https://smallstep.com/docs/cli/crypto/jwt/:
// step crypto keypair key.pub key.priv --kty RSA --no-password --insecure --force && echo '{"nonce": "invalid-nonce"}' | step crypto jwt sign --key key.priv --aud test-client-id --sub test-user --subtle --kid="test-kid" --jti="test-jti"
returnIDTok: "eyJhbGciOiJSUzI1NiIsImtpZCI6InRlc3Qta2lkIiwidHlwIjoiSldUIn0.eyJhdWQiOiJ0ZXN0LWNsaWVudC1pZCIsImlhdCI6MTYwMjI4Mzc0MSwianRpIjoidGVzdC1qdGkiLCJuYmYiOjE2MDIyODM3NDEsIm5vbmNlIjoiaW52YWxpZC1ub25jZSIsInN1YiI6InRlc3QtdXNlciJ9.PRpq-7j5djaIAkraL-8t8ad9Xm4hM8RW67gyD1VIe0BecWeBFxsTuh3SZVKM9zmcwTgjudsyn8kQOwipDa49IN4PV8FcJA_uUJZi2wiqGJUSTG2K5I89doV_7e0RM1ZYIDDW1G2heKJNW7MbKkX7iEPr7u4MyEzswcPcupbyDA-CQFeL95vgwawoqa6yO94ympTbozqiNfj6Xyw_nHtThQnstjWsJZ9s2mUgppZezZv4HZYTQ7c3e_bzwhWgCzh2CSDJn9_Ra_n_4GcVkpHbsHTP35dFsnf0vactPx6CAu6A1-Apk-BruCktpZ3B4Ercf1UnUOHdGqzQKJtqvB03xQ",
wantHTTPStatus: http.StatusBadRequest,
wantErr: `received ID token with invalid nonce: invalid nonce (expected "test-nonce", got "invalid-nonce")`,
},
{
name: "valid",
query: "state=test-state&code=valid",
// Test JWT generated with https://smallstep.com/docs/cli/crypto/jwt/:
// step crypto keypair key.pub key.priv --kty RSA --no-password --insecure --force && echo '{"nonce": "test-nonce"}' | step crypto jwt sign --key key.priv --aud test-client-id --sub test-user --subtle --kid="test-kid" --jti="test-jti"
returnIDTok: "eyJhbGciOiJSUzI1NiIsImtpZCI6InRlc3Qta2lkIiwidHlwIjoiSldUIn0.eyJhdWQiOiJ0ZXN0LWNsaWVudC1pZCIsImlhdCI6MTYwMjUzMTU2NywianRpIjoidGVzdC1qdGkiLCJuYmYiOjE2MDI1MzE1NjcsIm5vbmNlIjoidGVzdC1ub25jZSIsInN1YiI6InRlc3QtdXNlciJ9.LbOA31iwJZBM4ayY5Oud-HArLXbmtAIhZv_LazDqbzA2Iw87RxoBemfiPUJeAesdnO1LKSjBwbltZwtjvbLWHp1R5tqrSMr_hl2OyZv1cpEX-9QaTcQILJ5qR00riRLz34ZCQFyF-FfQpP1r4dNqFrxHuiBwKuPE7zogc83ZYJgAQM5Fao9rIRY9JStL_3pURa9JnnSHFlkLvFYv3TKEUyvnW4pWvYZcsGI7mys43vuSjpG7ZSrW3vCxovuIpXYqAhamZL_XexWUsXvi3ej9HNlhnhOFhN4fuPSc0PWDWaN0CLWmoo8gvOdQWo5A4GD4bNGBzjYOd-pYqsDfseRt1Q",
},
}
for _, tt := range tests {
tt := tt
t.Run(tt.name, func(t *testing.T) {
tokenServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
require.Equal(t, http.MethodPost, r.Method)
require.NoError(t, r.ParseForm())
require.Equal(t, "test-client-id", r.Form.Get("client_id"))
require.Equal(t, "test-pkce", r.Form.Get("code_verifier"))
require.Equal(t, "authorization_code", r.Form.Get("grant_type"))
require.NotEmpty(t, r.Form.Get("code"))
if r.Form.Get("code") != "valid" {
http.Error(w, "invalid authorization code", http.StatusForbidden)
return
}
var response struct {
oauth2.Token
IDToken string `json:"id_token,omitempty"`
}
response.AccessToken = "test-access-token"
response.Expiry = time.Now().Add(time.Hour)
response.IDToken = tt.returnIDTok
w.Header().Set("content-type", "application/json")
require.NoError(t, json.NewEncoder(w).Encode(&response))
}))
t.Cleanup(tokenServer.Close)
h := &handlerState{
callbacks: make(chan callbackResult, 1),
state: state.State("test-state"),
pkce: pkce.Code("test-pkce"),
nonce: nonce.Nonce("test-nonce"),
oauth2Config: &oauth2.Config{
ClientID: "test-client-id",
RedirectURL: "http://localhost:12345/callback",
Endpoint: oauth2.Endpoint{
TokenURL: tokenServer.URL,
AuthStyle: oauth2.AuthStyleInParams,
},
},
idTokenVerifier: mockVerifier(),
}
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
resp := httptest.NewRecorder()
req, err := http.NewRequestWithContext(ctx, "GET", "/test-callback", nil)
require.NoError(t, err)
req.URL.RawQuery = tt.query
if tt.method != "" {
req.Method = tt.method
}
err = h.handleAuthCodeCallback(resp, req)
if tt.wantErr != "" {
require.EqualError(t, err, tt.wantErr)
if tt.wantHTTPStatus != 0 {
rec := httptest.NewRecorder()
err.(httperr.Responder).Respond(rec)
require.Equal(t, tt.wantHTTPStatus, rec.Code)
}
} else {
require.NoError(t, err)
}
select {
case <-time.After(1 * time.Second):
require.Fail(t, "timed out waiting to receive from callbacks channel")
case result := <-h.callbacks:
if tt.wantErr != "" {
require.EqualError(t, result.err, tt.wantErr)
return
}
require.NoError(t, result.err)
require.NotNil(t, result.token)
require.Equal(t, result.token.IDToken, tt.returnIDTok)
}
})
}
}
// mockVerifier returns an *oidc.IDTokenVerifier that validates any correctly serialized JWT without doing much else.
func mockVerifier() *oidc.IDTokenVerifier {
mockKeySet := mockkeyset.NewMockKeySet(gomock.NewController(nil))
mockKeySet.EXPECT().VerifySignature(gomock.Any(), gomock.Any()).
AnyTimes().
DoAndReturn(func(ctx context.Context, jwt string) ([]byte, error) {
jws, err := jose.ParseSigned(jwt)
if err != nil {
return nil, err
}
return jws.UnsafePayloadWithoutVerification(), nil
})
return oidc.NewVerifier("", mockKeySet, &oidc.Config{
SkipIssuerCheck: true,
SkipExpiryCheck: true,
SkipClientIDCheck: true,
})
}