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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/modules/payments/secure_payment_confirmation_helper.h"
#include <stdint.h>
#include "base/logging.h"
#include "third_party/blink/public/mojom/payments/payment_request.mojom-blink.h"
#include "third_party/blink/renderer/bindings/core/v8/native_value_traits_impl.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_union_arraybuffer_arraybufferview.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_payment_credential_instrument.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_secure_payment_confirmation_request.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_network_or_issuer_information.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/modules/payments/secure_payment_confirmation_type_converter.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/weborigin/kurl.h"
namespace blink {
namespace {
bool IsEmpty(const V8UnionArrayBufferOrArrayBufferView* buffer) {
DCHECK(buffer);
switch (buffer->GetContentType()) {
case V8BufferSource::ContentType::kArrayBuffer:
return buffer->GetAsArrayBuffer()->ByteLength() == 0;
case V8BufferSource::ContentType::kArrayBufferView:
return buffer->GetAsArrayBufferView()->byteLength() == 0;
}
}
// Determine whether an RP ID is a 'valid domain' as per the URL spec:
// https://url.spec.whatwg.org/#valid-domain
//
// TODO(crbug.com/1354209): This is a workaround to a lack of support for 'valid
// domain's in the //url code.
bool IsValidDomain(const String& rp_id) {
// A valid domain, such as 'site.example', should be a URL host (and nothing
// more of the URL!) that is not an IP address.
KURL url("https://" + rp_id);
return url.IsValid() && url.Host() == rp_id &&
!url::HostIsIPAddress(url.Host().Utf8());
}
} // namespace
// static
::payments::mojom::blink::SecurePaymentConfirmationRequestPtr
SecurePaymentConfirmationHelper::ParseSecurePaymentConfirmationData(
const ScriptValue& input,
ExecutionContext& execution_context,
ExceptionState& exception_state) {
DCHECK(!input.IsEmpty());
SecurePaymentConfirmationRequest* request =
NativeValueTraits<SecurePaymentConfirmationRequest>::NativeValue(
input.GetIsolate(), input.V8Value(), exception_state);
if (exception_state.HadException())
return nullptr;
if (request->credentialIds().empty()) {
exception_state.ThrowRangeError(
"The \"secure-payment-confirmation\" method requires a non-empty "
"\"credentialIds\" field.");
return nullptr;
}
for (const V8UnionArrayBufferOrArrayBufferView* id :
request->credentialIds()) {
if (IsEmpty(id)) {
exception_state.ThrowRangeError(
"The \"secure-payment-confirmation\" method requires that elements "
"in the \"credentialIds\" field are non-empty.");
return nullptr;
}
}
if (IsEmpty(request->challenge())) {
exception_state.ThrowTypeError(
"The \"secure-payment-confirmation\" method requires a non-empty "
"\"challenge\" field.");
return nullptr;
}
if (request->instrument()->displayName().empty()) {
exception_state.ThrowTypeError(
"The \"secure-payment-confirmation\" method requires a non-empty "
"\"instrument.displayName\" field.");
return nullptr;
}
if (request->instrument()->icon().empty()) {
exception_state.ThrowTypeError(
"The \"secure-payment-confirmation\" method requires a non-empty "
"\"instrument.icon\" field.");
return nullptr;
}
if (!KURL(request->instrument()->icon()).IsValid()) {
exception_state.ThrowTypeError(
"The \"secure-payment-confirmation\" method requires a valid URL in "
"the \"instrument.icon\" field.");
return nullptr;
}
if (!IsValidDomain(request->rpId())) {
exception_state.ThrowTypeError(
"The \"secure-payment-confirmation\" method requires a valid domain "
"in the \"rpId\" field.");
return nullptr;
}
if ((!request->hasPayeeOrigin() && !request->hasPayeeName()) ||
(request->hasPayeeOrigin() && request->payeeOrigin().empty()) ||
(request->hasPayeeName() && request->payeeName().empty())) {
exception_state.ThrowTypeError(
"The \"secure-payment-confirmation\" method requires a non-empty "
"\"payeeOrigin\" or \"payeeName\" field.");
return nullptr;
}
if (request->hasPayeeOrigin()) {
KURL payee_url(request->payeeOrigin());
if (!payee_url.IsValid() || !payee_url.ProtocolIs("https")) {
exception_state.ThrowTypeError(
"The \"secure-payment-confirmation\" method requires a valid HTTPS "
"URL in the \"payeeOrigin\" field.");
return nullptr;
}
}
// Opt Out should only be carried through if the flag is enabled.
if (request->hasShowOptOut() &&
!blink::RuntimeEnabledFeatures::SecurePaymentConfirmationOptOutEnabled(
&execution_context)) {
request->setShowOptOut(false);
}
if (request->hasNetworkInfo()) {
if (request->networkInfo()->name().empty()) {
exception_state.ThrowTypeError(
"The \"secure-payment-confirmation\" method requires a non-empty "
"\"networkInfo.name\" field.");
return nullptr;
}
if (request->networkInfo()->icon().empty()) {
exception_state.ThrowTypeError(
"The \"secure-payment-confirmation\" method requires a non-empty "
"\"networkInfo.icon\" field.");
return nullptr;
}
if (!KURL(request->networkInfo()->icon()).IsValid()) {
exception_state.ThrowTypeError(
"The \"secure-payment-confirmation\" method requires a valid URL in "
"the \"networkInfo.icon\" field.");
return nullptr;
}
}
if (request->hasIssuerInfo()) {
if (request->issuerInfo()->name().empty()) {
exception_state.ThrowTypeError(
"The \"secure-payment-confirmation\" method requires a non-empty "
"\"issuerInfo.name\" field.");
return nullptr;
}
if (request->issuerInfo()->icon().empty()) {
exception_state.ThrowTypeError(
"The \"secure-payment-confirmation\" method requires a non-empty "
"\"issuerInfo.icon\" field.");
return nullptr;
}
if (!KURL(request->issuerInfo()->icon()).IsValid()) {
exception_state.ThrowTypeError(
"The \"secure-payment-confirmation\" method requires a valid URL in "
"the \"issuerInfo.icon\" field.");
return nullptr;
}
}
return mojo::ConvertTo<
payments::mojom::blink::SecurePaymentConfirmationRequestPtr>(request);
}
} // namespace blink
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