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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/payments/content/browser_binding/browser_bound_keys_deleter.h"
#include "components/payments/content/browser_binding/passkey_browser_binder.h"
#include "components/payments/content/payment_manifest_web_data_service.h"
#include "components/webauthn/android/internal_authenticator_android.h"
#include "third_party/blink/public/common/features.h"
namespace payments {
BrowserBoundKeyDeleter::BrowserBoundKeyDeleter(
scoped_refptr<PaymentManifestWebDataService> web_data_service)
: web_data_service_(web_data_service) {}
BrowserBoundKeyDeleter::~BrowserBoundKeyDeleter() = default;
void BrowserBoundKeyDeleter::RemoveInvalidBBKs() {
if (!web_data_service_) {
// There are no browser bound keys to be removed when there is no
// PaymentManifestWebDataService.
return;
}
if (!base::FeatureList::IsEnabled(
blink::features::kSecurePaymentConfirmationBrowserBoundKeys)) {
return;
}
auto authenticator = std::make_unique<webauthn::InternalAuthenticatorAndroid>(
/*render_frame_host=*/nullptr);
if (!authenticator->IsGetMatchingCredentialIdsSupported()) {
// SPC (on Android) requires GetMatchingCredentialIds, so BBKs are not
// relevant when this API is not supported.
return;
}
scoped_refptr<BrowserBoundKeyStore> bbk_key_store =
GetBrowserBoundKeyStoreInstance();
CHECK(bbk_key_store);
auto passkey_browser_binder =
std::make_unique<PasskeyBrowserBinder>(bbk_key_store, web_data_service_);
passkey_browser_binder->DeleteAllUnknownBrowserBoundKeys(
base::BindRepeating(
&webauthn::InternalAuthenticatorAndroid::GetMatchingCredentialIds,
// The authenticator will be destroyed once this callback is no longer
// referenced.
base::Owned(std::move(authenticator))),
base::BindOnce(
[](std::unique_ptr<PasskeyBrowserBinder> passkey_browser_binder) {
// This callback runs after BBK metadata has been deleted.
// Destroy the unique_ptr objects: Reset here explicitly for
// emphasis. Note the unique_ptr object would be reset regardless
// by going out of scope.
passkey_browser_binder.reset();
},
std::move(passkey_browser_binder)));
// Don't access authenticator nor passkey_browser_binder after this point.
}
} // namespace payments
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