fluxer/tests/integration/oauth2_client_secret_not_leaked_test.go
2026-01-01 21:05:54 +00:00

106 lines
3.2 KiB
Go

/*
* Copyright (C) 2026 Fluxer Contributors
*
* This file is part of Fluxer.
*
* Fluxer is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Fluxer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
*/
package integration
import (
"fmt"
"testing"
"time"
)
// TestOAuth2ClientSecretNotLeaked verifies that client_secret is only shown once
// during application creation and never exposed in subsequent GET requests.
// Secrets should remain write-only and must be stored securely by the application owner.
func TestOAuth2ClientSecretNotLeaked(t *testing.T) {
client := newTestClient(t)
appOwner := createTestAccount(t, client)
redirectURI := "https://example.com/callback"
appID, _, _, clientSecret := createOAuth2Application(t, client, appOwner,
fmt.Sprintf("Secret Test App %d", time.Now().UnixNano()),
[]string{redirectURI},
[]string{"identify"},
)
if clientSecret == "" {
t.Fatalf("client_secret should be returned on application creation")
}
t.Run("GET application does not expose client_secret", func(t *testing.T) {
app := getOAuth2Application(t, client, appOwner.Token, appID)
if app.ID != appID {
t.Fatalf("expected application ID %s, got %s", appID, app.ID)
}
if app.ClientSecret != "" {
t.Fatalf("GET application exposed the client_secret - security leak")
}
})
t.Run("LIST applications does not expose client_secret", func(t *testing.T) {
apps := listOAuth2Applications(t, client, appOwner.Token)
var foundApp *oauth2ApplicationResponse
for i := range apps {
if apps[i].ID == appID {
foundApp = &apps[i]
break
}
}
if foundApp == nil {
t.Fatalf("created application not found in list")
return
}
if foundApp.ClientSecret != "" {
t.Fatalf("LIST applications exposed the client_secret - security leak")
}
})
t.Run("UPDATE application does not expose client_secret", func(t *testing.T) {
updates := map[string]any{
"name": fmt.Sprintf("Updated App %d", time.Now().UnixNano()),
}
updatedApp := updateOAuth2Application(t, client, appOwner.Token, appID, updates)
if updatedApp.ID != appID {
t.Fatalf("expected application ID %s, got %s", appID, updatedApp.ID)
}
if updatedApp.ClientSecret != "" {
t.Fatalf("UPDATE application exposed the client_secret - security leak")
}
})
t.Run("client_secret still works for authentication", func(t *testing.T) {
endUser := createTestAccount(t, client)
authCode, _ := authorizeOAuth2(t, client, endUser.Token, appID, redirectURI, []string{"identify"}, "", "", "")
token := exchangeOAuth2AuthorizationCode(t, client, appID, clientSecret, authCode, redirectURI, "")
if token.AccessToken == "" {
t.Fatalf("original client_secret should still work for token exchange")
}
})
}