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client_credentials_grant_test.go
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client_credentials_grant_test.go
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// Copyright © 2024 Ory Corp
// SPDX-License-Identifier: Apache-2.0
package integration_test
import (
"encoding/json"
"fmt"
"io"
"net/http"
"net/http/httptest"
"net/url"
"strings"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/tidwall/gjson"
goauth "golang.org/x/oauth2"
"github.com/ory/fosite"
"github.com/ory/fosite/compose"
"github.com/ory/fosite/handler/oauth2"
"github.com/ory/fosite/internal"
)
func TestClientCredentialsFlow(t *testing.T) {
for _, strategy := range []oauth2.AccessTokenStrategy{
hmacStrategy,
} {
runClientCredentialsGrantTest(t, strategy)
}
}
func introspect(t *testing.T, ts *httptest.Server, token string, p interface{}, username, password string) {
req, err := http.NewRequest("POST", ts.URL+"/introspect", strings.NewReader(url.Values{"token": {token}}.Encode()))
require.NoError(t, err)
req.SetBasicAuth(username, password)
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
r, err := http.DefaultClient.Do(req)
require.NoError(t, err)
defer r.Body.Close()
body, err := io.ReadAll(r.Body)
require.NoError(t, err)
assert.Equal(t, http.StatusOK, r.StatusCode, "%s", body)
require.NoError(t, json.Unmarshal(body, p))
}
func runClientCredentialsGrantTest(t *testing.T, strategy oauth2.AccessTokenStrategy) {
f := compose.Compose(new(fosite.Config), fositeStore, strategy, compose.OAuth2ClientCredentialsGrantFactory, compose.OAuth2TokenIntrospectionFactory)
ts := mockServer(t, f, &fosite.DefaultSession{})
defer ts.Close()
oauthClient := newOAuth2AppClient(ts)
fositeStore.Clients["my-client"].(*fosite.DefaultClient).RedirectURIs[0] = ts.URL + "/callback"
fositeStore.Clients["custom-lifespan-client"].(*fosite.DefaultClientWithCustomTokenLifespans).RedirectURIs[0] = ts.URL + "/callback"
for k, c := range []struct {
description string
setup func()
err bool
check func(t *testing.T, token *goauth.Token)
params url.Values
}{
{
description: "should fail because of ungranted scopes",
setup: func() {
oauthClient.Scopes = []string{"unknown"}
},
err: true,
},
{
description: "should fail because of ungranted audience",
params: url.Values{"audience": {"https://www.ory.sh/not-api"}},
setup: func() {
oauthClient.Scopes = []string{"fosite"}
},
err: true,
},
{
params: url.Values{"audience": {"https://www.ory.sh/api"}},
description: "should pass",
setup: func() {
},
check: func(t *testing.T, token *goauth.Token) {
var j json.RawMessage
introspect(t, ts, token.AccessToken, &j, oauthClient.ClientID, oauthClient.ClientSecret)
assert.Equal(t, oauthClient.ClientID, gjson.GetBytes(j, "client_id").String())
assert.Equal(t, "fosite", gjson.GetBytes(j, "scope").String())
},
},
{
description: "should pass",
setup: func() {
},
check: func(t *testing.T, token *goauth.Token) {
var j json.RawMessage
introspect(t, ts, token.AccessToken, &j, oauthClient.ClientID, oauthClient.ClientSecret)
introspect(t, ts, token.AccessToken, &j, oauthClient.ClientID, oauthClient.ClientSecret)
assert.Equal(t, oauthClient.ClientID, gjson.GetBytes(j, "client_id").String())
assert.Equal(t, "fosite", gjson.GetBytes(j, "scope").String())
atReq, ok := fositeStore.AccessTokens[strings.Split(token.AccessToken, ".")[1]]
require.True(t, ok)
atExp := atReq.GetSession().GetExpiresAt(fosite.AccessToken)
internal.RequireEqualTime(t, time.Now().UTC().Add(time.Hour), atExp, time.Minute)
atExpIn := time.Duration(token.Extra("expires_in").(float64)) * time.Second
internal.RequireEqualDuration(t, time.Hour, atExpIn, time.Minute)
},
},
{
description: "should pass with custom client token lifespans",
setup: func() {
oauthClient.ClientID = "custom-lifespan-client"
},
check: func(t *testing.T, token *goauth.Token) {
var j json.RawMessage
introspect(t, ts, token.AccessToken, &j, oauthClient.ClientID, oauthClient.ClientSecret)
introspect(t, ts, token.AccessToken, &j, oauthClient.ClientID, oauthClient.ClientSecret)
assert.Equal(t, oauthClient.ClientID, gjson.GetBytes(j, "client_id").String())
assert.Equal(t, "fosite", gjson.GetBytes(j, "scope").String())
atReq, ok := fositeStore.AccessTokens[strings.Split(token.AccessToken, ".")[1]]
require.True(t, ok)
atExp := atReq.GetSession().GetExpiresAt(fosite.AccessToken)
internal.RequireEqualTime(t, time.Now().UTC().Add(*internal.TestLifespans.ClientCredentialsGrantAccessTokenLifespan), atExp, time.Minute)
atExpIn := time.Duration(token.Extra("expires_in").(float64)) * time.Second
internal.RequireEqualDuration(t, *internal.TestLifespans.ClientCredentialsGrantAccessTokenLifespan, atExpIn, time.Minute)
rtExp := atReq.GetSession().GetExpiresAt(fosite.RefreshToken)
internal.RequireEqualTime(t, time.Time{}, rtExp, time.Minute)
},
},
} {
t.Run(fmt.Sprintf("case=%d", k), func(t *testing.T) {
c.setup()
oauthClient.EndpointParams = c.params
token, err := oauthClient.Token(goauth.NoContext)
require.Equal(t, c.err, err != nil, "(%d) %s\n%s\n%s", k, c.description, c.err, err)
if !c.err {
assert.NotEmpty(t, token.AccessToken, "(%d) %s\n%s", k, c.description, token)
}
if c.check != nil {
c.check(t, token)
}
t.Logf("Passed test case %d", k)
})
}
}