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// Copyright 2019 The Chromium Authors. All rights reserved.
// 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/skip_to_gpay_utils.h"
#include "base/check_op.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_payment_method_data.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_payment_options.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/json/json_parser.h"
#include "third_party/blink/renderer/platform/json/json_values.h"
namespace blink {
namespace {
using ::payments::mojom::blink::GooglePaymentMethodDataPtr;
using ::payments::mojom::blink::PaymentMethodDataPtr;
// Convenience function to return an object-type value for |name| in |map|, and
// inserts if |name| does not exist in |map|.
JSONObject* GetJSONObjectOrInsert(JSONObject* map, const String& name) {
if (!map->GetJSONObject(name)) {
map->SetObject(name, std::make_unique<JSONObject>());
}
return map->GetJSONObject(name);
}
// Update |output| to request payer name and payer phone number, if they are
// requested in |options|. |output| is expected to conform to GPay API v1.
// Returns true if |output| is successfully modified. The output arguments
// |phone_requested| and |name_requested| are set to true if the corresponding
// parameters are not already set before the update.
bool PatchGooglePayContactRequestV1(const PaymentOptions& options,
JSONObject* output,
bool* phone_requested,
bool* name_requested) {
if (options.requestPayerName() || options.requestPayerPhone()) {
const JSONObject* card_requirements =
output->GetJSONObject("cardRequirements");
// Phone number is returned as part of billing address, so
// |billingAddressRequired| must be set even if name is not requested.
if (!card_requirements ||
!card_requirements->BooleanProperty("billingAddressRequired", false)) {
GetJSONObjectOrInsert(output, "cardRequirements")
->SetBoolean("billingAddressRequired", true);
*name_requested = true;
}
}
if (options.requestPayerPhone() &&
!output->BooleanProperty("phoneNumberRequired", false)) {
output->SetBoolean("phoneNumberRequired", true);
*phone_requested = true;
}
return true;
}
// Update |output| to request payer name and payer phone number, if they are
// requested in |options|. |output| is expected to conform to GPay API v2.
// Returns true if |output| is successfully modified. The output arguments
// |phone_requested| and |name_requested| are set to true if the corresponding
// parameters are not already set before the update.
// See
// https://developers.google.com/pay/api/web/reference/object#PaymentDataRequest
bool PatchGooglePayContactRequestV2(const PaymentOptions& options,
JSONObject* output,
bool* phone_requested,
bool* name_requested) {
JSONObject* card_method = nullptr;
if (options.requestPayerName() || options.requestPayerPhone()) {
JSONArray* payment_methods = output->GetArray("allowedPaymentMethods");
if (!payment_methods)
return false;
for (wtf_size_t i = 0; i < payment_methods->size(); i++) {
JSONObject* method = JSONObject::Cast(payment_methods->at(i));
String method_type;
if (method && method->GetString("type", &method_type) &&
method_type == "CARD") {
card_method = method;
break;
}
}
if (!card_method)
return false;
const JSONObject* parameters = card_method->GetJSONObject("parameters");
if (!parameters ||
!parameters->BooleanProperty("billingAddressRequired", false)) {
GetJSONObjectOrInsert(card_method, "parameters")
->SetBoolean("billingAddressRequired", true);
*name_requested = true;
}
}
if (options.requestPayerPhone()) {
const JSONObject* parameters = card_method->GetJSONObject("parameters");
const JSONObject* billing_parameters =
parameters ? parameters->GetJSONObject("billingAddressParameters")
: nullptr;
if (!billing_parameters ||
!billing_parameters->BooleanProperty("phoneNumberRequired", false)) {
GetJSONObjectOrInsert(GetJSONObjectOrInsert(card_method, "parameters"),
"billingAddressParameters")
->SetBoolean("phoneNumberRequired", true);
*phone_requested = true;
}
}
return true;
}
} // namespace
bool SkipToGPayUtils::IsEligible(
const HeapVector<Member<PaymentMethodData>>& method_data) {
bool has_basic_card = false;
bool has_gpay = false;
bool has_other = false;
for (const PaymentMethodData* payment_method_data : method_data) {
if (payment_method_data->supportedMethod() == "basic-card") {
has_basic_card = true;
} else if (payment_method_data->supportedMethod() ==
"https://google.com/pay") {
has_gpay = true;
} else if (payment_method_data->supportedMethod() !=
"https://android.com/pay") {
has_other = true;
}
}
return has_basic_card && has_gpay && !has_other;
}
bool SkipToGPayUtils::PatchPaymentMethodData(
const PaymentOptions& options,
PaymentMethodDataPtr& payment_method_data) {
DCHECK_EQ("https://google.com/pay", payment_method_data->supported_method);
GooglePaymentMethodDataPtr gpay =
payments::mojom::blink::GooglePaymentMethodData::New();
const String& input = payment_method_data->stringified_data;
String& output = gpay->stringified_data;
gpay->phone_requested = false;
gpay->name_requested = false;
gpay->email_requested = false;
gpay->shipping_requested = false;
// |input| has just been serialized from a ScriptValue. We are taking the
// performance hit of parsing it again here because blink::JSONObject provides
// a nicer interface to work with the underlying object than v8::Object. Using
// an IDLDictionary is not feasible either because the conversion from
// v8::Object to IDLDictionary is lossy without fully duplicating the entire
// GPay request schema in IDL. It should be OK for now as this code is only
// exercised on the experimental skip-to-GPay flow.
JSONParseError error;
std::unique_ptr<JSONValue> value = ParseJSON(input, &error);
if (error.type != JSONParseErrorType::kNoError) {
return false;
}
std::unique_ptr<JSONObject> object = JSONObject::From(std::move(value));
if (!object)
return false;
int api_version;
if (!object->GetInteger("apiVersion", &api_version)) {
// Some API v1 clients don't explicitly specify "apiVersion".
api_version = 1;
}
bool success = true;
if (api_version == 1) {
success &= PatchGooglePayContactRequestV1(options, object.get(),
&(gpay->phone_requested),
&(gpay->name_requested));
} else if (api_version == 2) {
success &= PatchGooglePayContactRequestV2(options, object.get(),
&(gpay->phone_requested),
&(gpay->name_requested));
} else {
return false;
}
if (options.requestPayerEmail() &&
!object->BooleanProperty("emailRequired", false)) {
object->SetBoolean("emailRequired", true);
gpay->email_requested = true;
}
if (options.requestShipping() &&
!object->BooleanProperty("shippingAddressRequired", false)) {
object->SetBoolean("shippingAddressRequired", true);
gpay->shipping_requested = true;
}
if (success) {
output = object->ToJSONString();
payment_method_data->gpay_bridge_data = std::move(gpay);
}
return success;
}
} // namespace blink
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