components/payments/content/payment_request.cc

// Copyright 2016 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 "components/payments/content/payment_request.h"

#include <algorithm>
#include <string>
#include <utility>

#include "base/bind.h"
#include "base/feature_list.h"
#include "base/stl_util.h"
#include "base/strings/string_util.h"
#include "components/payments/content/can_make_payment_query_factory.h"
#include "components/payments/content/content_payment_request_delegate.h"
#include "components/payments/content/payment_details_converter.h"
#include "components/payments/content/payment_request_converter.h"
#include "components/payments/content/payment_request_web_contents_manager.h"
#include "components/payments/content/service_worker_payment_instrument.h"
#include "components/payments/core/can_make_payment_query.h"
#include "components/payments/core/error_strings.h"
#include "components/payments/core/features.h"
#include "components/payments/core/native_error_strings.h"
#include "components/payments/core/payment_details.h"
#include "components/payments/core/payment_details_validation.h"
#include "components/payments/core/payment_instrument.h"
#include "components/payments/core/payment_prefs.h"
#include "components/payments/core/payments_experimental_features.h"
#include "components/payments/core/payments_validators.h"
#include "components/payments/core/url_util.h"
#include "components/prefs/pref_service.h"
#include "components/ukm/content/source_url_recorder.h"
#include "components/url_formatter/elide_url.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_features.h"
#include "content/public/common/origin_util.h"

namespace payments {
namespace {

using ::payments::mojom::CanMakePaymentQueryResult;
using ::payments::mojom::HasEnrolledInstrumentQueryResult;

bool IsGooglePaymentMethodInstrumentSelected(const std::string& method_name) {
  return method_name == kGooglePayMethodName ||
         method_name == kAndroidPayMethodName;
}

std::string GetNotSupportedErrorMessage(PaymentRequestSpec* spec) {
  if (!spec || spec->payment_method_identifiers_set().empty())
    return errors::kGenericPaymentMethodNotSupportedMessage;

  std::vector<std::string> method_names(
      spec->payment_method_identifiers_set().size());
  std::transform(
      spec->payment_method_identifiers_set().begin(),
      spec->payment_method_identifiers_set().end(), method_names.begin(),
      [](const std::string& method_name) { return "\"" + method_name + "\""; });

  std::string output;
  bool replaced = base::ReplaceChars(
      method_names.size() == 1
          ? errors::kSinglePaymentMethodNotSupportedFormat
          : errors::kMultiplePaymentMethodsNotSupportedFormat,
      "$", base::JoinString(method_names, ", "), &output);
  DCHECK(replaced);
  return output;
}

}  // namespace

PaymentRequest::PaymentRequest(
    content::RenderFrameHost* render_frame_host,
    content::WebContents* web_contents,
    std::unique_ptr<ContentPaymentRequestDelegate> delegate,
    PaymentRequestWebContentsManager* manager,
    PaymentRequestDisplayManager* display_manager,
    mojo::InterfaceRequest<mojom::PaymentRequest> request,
    ObserverForTest* observer_for_testing)
    : web_contents_(web_contents),
      log_(web_contents_),
      delegate_(std::move(delegate)),
      manager_(manager),
      display_manager_(display_manager),
      display_handle_(nullptr),
      binding_(this, std::move(request)),
      payment_handler_host_(web_contents_, this),
      top_level_origin_(url_formatter::FormatUrlForSecurityDisplay(
          web_contents_->GetLastCommittedURL())),
      frame_origin_(url_formatter::FormatUrlForSecurityDisplay(
          render_frame_host->GetLastCommittedURL())),
      observer_for_testing_(observer_for_testing),
      journey_logger_(delegate_->IsIncognito(),
                      ukm::GetSourceIdForWebContentsDocument(web_contents)) {
  // OnConnectionTerminated will be called when the Mojo pipe is closed. This
  // will happen as a result of many renderer-side events (both successful and
  // erroneous in nature).
  // TODO(crbug.com/683636): Investigate using
  // set_connection_error_with_reason_handler with Binding::CloseWithReason.
  binding_.set_connection_error_handler(base::BindOnce(
      &PaymentRequest::OnConnectionTerminated, weak_ptr_factory_.GetWeakPtr()));
}

PaymentRequest::~PaymentRequest() {}

void PaymentRequest::Init(mojom::PaymentRequestClientPtr client,
                          std::vector<mojom::PaymentMethodDataPtr> method_data,
                          mojom::PaymentDetailsPtr details,
                          mojom::PaymentOptionsPtr options) {
  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);

  if (is_initialized_) {
    log_.Error(errors::kAttemptedInitializationTwice);
    OnConnectionTerminated();
    return;
  }

  is_initialized_ = true;
  client_ = std::move(client);

  const GURL last_committed_url = delegate_->GetLastCommittedURL();
  if (!content::IsOriginSecure(last_committed_url)) {
    log_.Error(errors::kNotInASecureOrigin);
    OnConnectionTerminated();
    return;
  }

  // TODO(crbug.com/978471): Improve architecture for handling prohibited
  // origins and invalid SSL certificates.
  bool allowed_origin =
      UrlUtil::IsOriginAllowedToUseWebPaymentApis(last_committed_url);
  if (!allowed_origin) {
    reject_show_error_message_ = errors::kProhibitedOrigin;
  }

  bool invalid_ssl = false;
  if (last_committed_url.SchemeIsCryptographic()) {
    DCHECK(reject_show_error_message_.empty());
    reject_show_error_message_ =
        delegate_->GetInvalidSslCertificateErrorMessage();
    invalid_ssl = !reject_show_error_message_.empty();
  }

  if (!allowed_origin || invalid_ssl) {
    // Intentionally don't set |spec_| and |state_|, so the UI is never shown.
    log_.Error(reject_show_error_message_);
    log_.Error(errors::kProhibitedOriginOrInvalidSslExplanation);
    return;
  }

  std::string error;
  if (!ValidatePaymentDetails(ConvertPaymentDetails(details), &error)) {
    log_.Error(error);
    OnConnectionTerminated();
    return;
  }

  if (!details->total) {
    log_.Error(errors::kTotalRequired);
    OnConnectionTerminated();
    return;
  }

  spec_ = std::make_unique<PaymentRequestSpec>(
      std::move(options), std::move(details), std::move(method_data),
      /*observer=*/this, delegate_->GetApplicationLocale());
  state_ = std::make_unique<PaymentRequestState>(
      web_contents_, top_level_origin_, frame_origin_, spec_.get(),
      /*delegate=*/this, delegate_->GetApplicationLocale(),
      delegate_->GetPersonalDataManager(), delegate_.get(),
      /*sw_identity_observer=*/this, &journey_logger_);

  journey_logger_.SetRequestedInformation(
      spec_->request_shipping(), spec_->request_payer_email(),
      spec_->request_payer_phone(), spec_->request_payer_name());

  // Log metrics around which payment methods are requested by the merchant.
  GURL google_pay_url(kGooglePayMethodName);
  GURL android_pay_url(kAndroidPayMethodName);
  // Looking for payment methods that are NOT google-related payment methods.
  auto non_google_it =
      std::find_if(spec_->url_payment_method_identifiers().begin(),
                   spec_->url_payment_method_identifiers().end(),
                   [google_pay_url, android_pay_url](const GURL& url) {
                     return url != google_pay_url && url != android_pay_url;
                   });
  journey_logger_.SetRequestedPaymentMethodTypes(
      /*requested_basic_card=*/!spec_->supported_card_networks().empty(),
      /*requested_method_google=*/
      base::Contains(spec_->url_payment_method_identifiers(), google_pay_url) ||
          base::Contains(spec_->url_payment_method_identifiers(),
                         android_pay_url),
      /*requested_method_other=*/non_google_it !=
          spec_->url_payment_method_identifiers().end());

  payment_handler_host_.set_payment_request_id_for_logs(*spec_->details().id);
}

void PaymentRequest::Show(bool is_user_gesture, bool wait_for_updated_details) {
  if (!IsInitialized()) {
    log_.Error(errors::kCannotShowWithoutInit);
    OnConnectionTerminated();
    return;
  }

  if (is_show_called_) {
    log_.Error(errors::kCannotShowTwice);
    OnConnectionTerminated();
    return;
  }

  is_show_called_ = true;
  journey_logger_.SetTriggerTime();

  // A tab can display only one PaymentRequest UI at a time.
  display_handle_ = display_manager_->TryShow(delegate_.get());
  if (!display_handle_) {
    log_.Error(errors::kAnotherUiShowing);
    DCHECK(!has_recorded_completion_);
    has_recorded_completion_ = true;
    journey_logger_.SetNotShown(
        JourneyLogger::NOT_SHOWN_REASON_CONCURRENT_REQUESTS);
    client_->OnError(mojom::PaymentErrorReason::ALREADY_SHOWING,
                     errors::kAnotherUiShowing);
    OnConnectionTerminated();
    return;
  }

  if (!delegate_->IsBrowserWindowActive()) {
    log_.Error(errors::kCannotShowInBackgroundTab);
    DCHECK(!has_recorded_completion_);
    has_recorded_completion_ = true;
    journey_logger_.SetNotShown(JourneyLogger::NOT_SHOWN_REASON_OTHER);
    client_->OnError(mojom::PaymentErrorReason::USER_CANCEL,
                     errors::kCannotShowInBackgroundTab);
    OnConnectionTerminated();
    return;
  }

  if (!state_) {
    // SSL is not valid. Reject show with NotSupportedError, disconnect the
    // mojo pipe, and destroy this object.
    AreRequestedMethodsSupportedCallback(false, reject_show_error_message_);
    return;
  }

  is_show_user_gesture_ = is_user_gesture;

  if (wait_for_updated_details) {
    // Put |spec_| into uninitialized state, so the UI knows to show a spinner.
    // This method does not block.
    spec_->StartWaitingForUpdateWith(
        PaymentRequestSpec::UpdateReason::INITIAL_PAYMENT_DETAILS);
  } else {
    DCHECK(spec_->details().total);
    journey_logger_.RecordTransactionAmount(
        spec_->details().total->amount->currency,
        spec_->details().total->amount->value, false /*completed*/);
  }

  display_handle_->Show(this);
  state_->AreRequestedMethodsSupported(
      base::BindOnce(&PaymentRequest::AreRequestedMethodsSupportedCallback,
                     weak_ptr_factory_.GetWeakPtr()));
}

void PaymentRequest::Retry(mojom::PaymentValidationErrorsPtr errors) {
  if (!IsInitialized()) {
    log_.Error(errors::kCannotRetryWithoutInit);
    OnConnectionTerminated();
    return;
  }

  if (!IsThisPaymentRequestShowing()) {
    log_.Error(errors::kCannotRetryWithoutShow);
    OnConnectionTerminated();
    return;
  }

  std::string error;
  if (!PaymentsValidators::IsValidPaymentValidationErrorsFormat(errors,
                                                                &error)) {
    log_.Error(error);
    client_->OnError(mojom::PaymentErrorReason::USER_CANCEL, error);
    OnConnectionTerminated();
    return;
  }

  spec()->Retry(std::move(errors));
  display_handle_->Retry();
}

void PaymentRequest::UpdateWith(mojom::PaymentDetailsPtr details) {
  if (!IsInitialized()) {
    log_.Error(errors::kCannotUpdateWithoutInit);
    OnConnectionTerminated();
    return;
  }

  if (!IsThisPaymentRequestShowing()) {
    log_.Error(errors::kCannotUpdateWithoutShow);
    OnConnectionTerminated();
    return;
  }

  std::string error;
  if (!ValidatePaymentDetails(ConvertPaymentDetails(details), &error)) {
    log_.Error(error);
    OnConnectionTerminated();
    return;
  }

  if (details->shipping_address_errors &&
      !PaymentsValidators::IsValidAddressErrorsFormat(
          details->shipping_address_errors, &error)) {
    log_.Error(error);
    OnConnectionTerminated();
    return;
  }

  if (state()->selected_instrument() && state()->IsPaymentAppInvoked() &&
      payment_handler_host_.is_changing_payment_method()) {
    payment_handler_host_.UpdateWith(
        PaymentDetailsConverter::ConvertToPaymentMethodChangeResponse(
            details, base::BindRepeating(
                         &PaymentInstrument::IsValidForPaymentMethodIdentifier,
                         base::Unretained(state()->selected_instrument()))));
  }

  bool is_resolving_promise_passed_into_show_method = !spec_->IsInitialized();

  spec_->UpdateWith(std::move(details));

  if (is_resolving_promise_passed_into_show_method) {
    DCHECK(spec_->details().total);
    journey_logger_.RecordTransactionAmount(
        spec_->details().total->amount->currency,
        spec_->details().total->amount->value, false /*completed*/);
    if (SatisfiesSkipUIConstraints()) {
      Pay();
    } else if (spec_->request_shipping()) {
      state_->SelectDefaultShippingAddressAndNotifyObservers();
    }
  }
}

void PaymentRequest::NoUpdatedPaymentDetails() {
  // This Mojo call is triggered by the user of the API doing nothing in
  // response to a shipping address update event, so the error messages cannot
  // be more verbose.
  if (!IsInitialized()) {
    log_.Error(errors::kNotInitialized);
    OnConnectionTerminated();
    return;
  }

  if (!IsThisPaymentRequestShowing()) {
    log_.Error(errors::kNotShown);
    OnConnectionTerminated();
    return;
  }

  spec_->RecomputeSpecForDetails();

  if (state()->IsPaymentAppInvoked() &&
      payment_handler_host_.is_changing_payment_method()) {
    payment_handler_host_.NoUpdatedPaymentDetails();
  }
}

void PaymentRequest::Abort() {
  if (!IsInitialized()) {
    log_.Error(errors::kCannotAbortWithoutInit);
    OnConnectionTerminated();
    return;
  }

  if (!IsThisPaymentRequestShowing()) {
    log_.Error(errors::kCannotAbortWithoutShow);
    OnConnectionTerminated();
    return;
  }

  // The API user has decided to abort. If a successful abort message is
  // returned to the renderer, the Mojo message pipe is closed, which triggers
  // PaymentRequest::OnConnectionTerminated, which destroys this object.
  // Otherwise, the abort promise is rejected and the pipe is not closed.
  // The abort is only successful if the payment app wasn't yet invoked.
  // TODO(crbug.com/716546): Add a merchant abort metric

  bool accepting_abort = !state_->IsPaymentAppInvoked();
  if (accepting_abort)
    RecordFirstAbortReason(JourneyLogger::ABORT_REASON_ABORTED_BY_MERCHANT);

  if (client_.is_bound())
    client_->OnAbort(accepting_abort);

  if (observer_for_testing_)
    observer_for_testing_->OnAbortCalled();
}

void PaymentRequest::Complete(mojom::PaymentComplete result) {
  if (!IsInitialized()) {
    log_.Error(errors::kCannotCompleteWithoutInit);
    OnConnectionTerminated();
    return;
  }

  if (!IsThisPaymentRequestShowing()) {
    log_.Error(errors::kCannotAbortWithoutShow);
    OnConnectionTerminated();
    return;
  }

  // Failed transactions show an error. Successful and unknown-state
  // transactions don't show an error.
  if (result == mojom::PaymentComplete::FAIL) {
    delegate_->ShowErrorMessage();
  } else {
    DCHECK(!has_recorded_completion_);
    journey_logger_.SetCompleted();
    has_recorded_completion_ = true;
    DCHECK(spec_->details().total);
    journey_logger_.RecordTransactionAmount(
        spec_->details().total->amount->currency,
        spec_->details().total->amount->value, true /*completed*/);

    delegate_->GetPrefService()->SetBoolean(kPaymentsFirstTransactionCompleted,
                                            true);
    // When the renderer closes the connection,
    // PaymentRequest::OnConnectionTerminated will be called.
    client_->OnComplete();
    state_->RecordUseStats();
  }
}

void PaymentRequest::CanMakePayment() {
  if (!IsInitialized()) {
    log_.Error(errors::kCannotCallCanMakePaymentWithoutInit);
    OnConnectionTerminated();
    return;
  }

  // It's valid to call canMakePayment() without calling show() first.

  if (observer_for_testing_)
    observer_for_testing_->OnCanMakePaymentCalled();

  if (!delegate_->GetPrefService()->GetBoolean(kCanMakePaymentEnabled) ||
      !state_) {
    CanMakePaymentCallback(/*can_make_payment=*/false);
  } else {
    state_->CanMakePayment(
        base::BindOnce(&PaymentRequest::CanMakePaymentCallback,
                       weak_ptr_factory_.GetWeakPtr()));
  }
}

void PaymentRequest::HasEnrolledInstrument(bool per_method_quota) {
  if (!IsInitialized()) {
    log_.Error(errors::kCannotCallHasEnrolledInstrumentWithoutInit);
    OnConnectionTerminated();
    return;
  }

  // It's valid to call hasEnrolledInstrument() without calling show() first.

  if (observer_for_testing_)
    observer_for_testing_->OnHasEnrolledInstrumentCalled();

  if (!delegate_->GetPrefService()->GetBoolean(kCanMakePaymentEnabled) ||
      !state_) {
    HasEnrolledInstrumentCallback(per_method_quota,
                                  /*has_enrolled_instrument=*/false);
  } else {
    state_->HasEnrolledInstrument(
        base::BindOnce(&PaymentRequest::HasEnrolledInstrumentCallback,
                       weak_ptr_factory_.GetWeakPtr(), per_method_quota));
  }
}

bool PaymentRequest::ChangePaymentMethod(const std::string& method_name,
                                         const std::string& stringified_data) {
  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
  DCHECK(!method_name.empty());

  if (!state_ || !state_->IsPaymentAppInvoked() || !client_)
    return false;

  client_->OnPaymentMethodChange(method_name, stringified_data);
  return true;
}

void PaymentRequest::AreRequestedMethodsSupportedCallback(
    bool methods_supported,
    const std::string& error_message) {
  if (methods_supported) {
    if (SatisfiesSkipUIConstraints())
      Pay();
  } else {
    DCHECK(!has_recorded_completion_);
    has_recorded_completion_ = true;
    journey_logger_.SetNotShown(
        JourneyLogger::NOT_SHOWN_REASON_NO_SUPPORTED_PAYMENT_METHOD);
    client_->OnError(mojom::PaymentErrorReason::NOT_SUPPORTED,
                     GetNotSupportedErrorMessage(spec_.get()) +
                         (error_message.empty() ? "" : " " + error_message));
    if (observer_for_testing_)
      observer_for_testing_->OnNotSupportedError();
    OnConnectionTerminated();
  }
}

bool PaymentRequest::IsInitialized() const {
  return is_initialized_ && client_ && client_.is_bound() &&
         binding_.is_bound();
}

bool PaymentRequest::IsThisPaymentRequestShowing() const {
  return is_show_called_ && display_handle_ && spec_ && state_;
}

bool PaymentRequest::SatisfiesSkipUIConstraints() {
  // Only allowing URL base payment apps to skip the payment sheet.
  skipped_payment_request_ui_ =
      (spec()->url_payment_method_identifiers().size() == 1 ||
       delegate_->SkipUiForBasicCard()) &&
      base::FeatureList::IsEnabled(features::kWebPaymentsSingleAppUiSkip) &&
      base::FeatureList::IsEnabled(::features::kServiceWorkerPaymentApps) &&
      is_show_user_gesture_ && state()->IsInitialized() &&
      spec()->IsInitialized() && state()->available_instruments().size() == 1 &&
      spec()->stringified_method_data().size() == 1 &&
      !spec()->request_shipping() && !spec()->request_payer_name() &&
      !spec()->request_payer_phone() && !spec()->request_payer_email();
  if (skipped_payment_request_ui_) {
    DCHECK(state()->IsInitialized() && spec()->IsInitialized());
    journey_logger_.SetEventOccurred(JourneyLogger::EVENT_SKIPPED_SHOW);
  } else if (state()->IsInitialized() && spec()->IsInitialized()) {
    // Set EVENT_SHOWN only after state() and spec() initialization.
    journey_logger_.SetEventOccurred(JourneyLogger::EVENT_SHOWN);
  }
  return skipped_payment_request_ui_;
}

void PaymentRequest::OnPaymentResponseAvailable(
    mojom::PaymentResponsePtr response) {
  DCHECK(!response->method_name.empty());
  DCHECK(!response->stringified_details.empty());

  journey_logger_.SetEventOccurred(
      JourneyLogger::EVENT_RECEIVED_INSTRUMENT_DETAILS);

  // Log the correct "selected instrument" metric according to its type and
  // the method name in response.
  DCHECK(state_->selected_instrument());
  JourneyLogger::Event selected_event =
      JourneyLogger::Event::EVENT_SELECTED_OTHER;
  switch (state_->selected_instrument()->type()) {
    case PaymentInstrument::Type::AUTOFILL:
      selected_event = JourneyLogger::Event::EVENT_SELECTED_CREDIT_CARD;
      break;
    case PaymentInstrument::Type::SERVICE_WORKER_APP: {
      selected_event =
          IsGooglePaymentMethodInstrumentSelected(response->method_name)
              ? JourneyLogger::Event::EVENT_SELECTED_GOOGLE
              : JourneyLogger::Event::EVENT_SELECTED_OTHER;
      break;
    }
    case PaymentInstrument::Type::NATIVE_MOBILE_APP:
      NOTREACHED();
      break;
  }
  journey_logger_.SetEventOccurred(selected_event);

  // If currently interactive, show the processing spinner. Autofill payment
  // instruments request a CVC, so they are always interactive at this point. A
  // payment handler may elect to be non-interactive by not showing a
  // confirmation page to the user.
  if (delegate_->IsInteractive())
    delegate_->ShowProcessingSpinner();

  client_->OnPaymentResponse(std::move(response));
}

void PaymentRequest::OnPaymentResponseError(const std::string& error_message) {
  journey_logger_.SetEventOccurred(
      JourneyLogger::EVENT_RECEIVED_INSTRUMENT_DETAILS);
  RecordFirstAbortReason(JourneyLogger::ABORT_REASON_INSTRUMENT_DETAILS_ERROR);

  reject_show_error_message_ = error_message;
  delegate_->ShowErrorMessage();
  // When the user dismisses the error message, UserCancelled() will reject
  // PaymentRequest.show() with |reject_show_error_message_|.
}

void PaymentRequest::OnShippingOptionIdSelected(
    std::string shipping_option_id) {
  client_->OnShippingOptionChange(shipping_option_id);
}

void PaymentRequest::OnShippingAddressSelected(
    mojom::PaymentAddressPtr address) {
  // Redact shipping address before exposing it in ShippingAddressChangeEvent.
  // https://w3c.github.io/payment-request/#shipping-address-changed-algorithm
  if (PaymentsExperimentalFeatures::IsEnabled(
          features::kWebPaymentsRedactShippingAddress)) {
    address->organization.clear();
    address->phone.clear();
    address->recipient.clear();
    address->address_line.clear();
  }
  client_->OnShippingAddressChange(std::move(address));
}

void PaymentRequest::OnPayerInfoSelected(mojom::PayerDetailPtr payer_info) {
  client_->OnPayerDetailChange(std::move(payer_info));
}

void PaymentRequest::SetInvokedServiceWorkerIdentity(const url::Origin& origin,
                                                     int64_t registration_id) {
  payment_handler_host_.set_sw_origin_for_logs(origin);
  payment_handler_host_.set_registration_id_for_logs(registration_id);
}

void PaymentRequest::UserCancelled() {
  // If |client_| is not bound, then the object is already being destroyed as
  // a result of a renderer event.
  if (!client_.is_bound())
    return;

  RecordFirstAbortReason(JourneyLogger::ABORT_REASON_ABORTED_BY_USER);

  // This sends an error to the renderer, which informs the API user.
  client_->OnError(mojom::PaymentErrorReason::USER_CANCEL,
                   !reject_show_error_message_.empty()
                       ? reject_show_error_message_
                       : errors::kUserCancelled);

  // We close all bindings and ask to be destroyed.
  client_.reset();
  binding_.Close();
  payment_handler_host_.Disconnect();
  if (observer_for_testing_)
    observer_for_testing_->OnConnectionTerminated();
  manager_->DestroyRequest(this);
}

void PaymentRequest::DidStartMainFrameNavigationToDifferentDocument(
    bool is_user_initiated) {
  RecordFirstAbortReason(is_user_initiated
                             ? JourneyLogger::ABORT_REASON_USER_NAVIGATION
                             : JourneyLogger::ABORT_REASON_MERCHANT_NAVIGATION);
}

void PaymentRequest::OnConnectionTerminated() {
  // We are here because of a browser-side error, or likely as a result of the
  // connection_error_handler on |binding_|, which can mean that the renderer
  // has decided to close the pipe for various reasons (see all uses of
  // PaymentRequest::clearResolversAndCloseMojoConnection() in Blink). We close
  // the binding and the dialog, and ask to be deleted.
  client_.reset();
  binding_.Close();
  payment_handler_host_.Disconnect();
  delegate_->CloseDialog();
  if (observer_for_testing_)
    observer_for_testing_->OnConnectionTerminated();

  RecordFirstAbortReason(JourneyLogger::ABORT_REASON_MOJO_CONNECTION_ERROR);
  manager_->DestroyRequest(this);
}

void PaymentRequest::Pay() {
  journey_logger_.SetEventOccurred(JourneyLogger::EVENT_PAY_CLICKED);
  DCHECK(state_->selected_instrument());
  if (state_->selected_instrument()->type() ==
      PaymentInstrument::Type::SERVICE_WORKER_APP) {
    static_cast<ServiceWorkerPaymentInstrument*>(state_->selected_instrument())
        ->set_payment_handler_host(payment_handler_host_.Bind());
  }
  state_->GeneratePaymentResponse();
}

void PaymentRequest::HideIfNecessary() {
  display_handle_.reset();
}

bool PaymentRequest::IsIncognito() const {
  return delegate_->IsIncognito();
}

void PaymentRequest::RecordFirstAbortReason(
    JourneyLogger::AbortReason abort_reason) {
  if (!has_recorded_completion_) {
    has_recorded_completion_ = true;
    journey_logger_.SetAborted(abort_reason);
  }
}

void PaymentRequest::CanMakePaymentCallback(bool can_make_payment) {
  client_->OnCanMakePayment(
      can_make_payment ? mojom::CanMakePaymentQueryResult::CAN_MAKE_PAYMENT
                       : mojom::CanMakePaymentQueryResult::CANNOT_MAKE_PAYMENT);

  journey_logger_.SetCanMakePaymentValue(can_make_payment);

  if (observer_for_testing_)
    observer_for_testing_->OnCanMakePaymentReturned();
}

void PaymentRequest::HasEnrolledInstrumentCallback(
    bool per_method_quota,
    bool has_enrolled_instrument) {
  if (!spec_ || CanMakePaymentQueryFactory::GetInstance()
                    ->GetForContext(web_contents_->GetBrowserContext())
                    ->CanQuery(top_level_origin_, frame_origin_,
                               spec_->query_for_quota(), per_method_quota)) {
    RespondToHasEnrolledInstrumentQuery(has_enrolled_instrument,
                                        /*warn_local_development=*/false);
  } else if (UrlUtil::IsLocalDevelopmentUrl(frame_origin_)) {
    RespondToHasEnrolledInstrumentQuery(has_enrolled_instrument,
                                        /*warn_local_development=*/true);
  } else {
    client_->OnHasEnrolledInstrument(
        HasEnrolledInstrumentQueryResult::QUERY_QUOTA_EXCEEDED);
  }

  if (observer_for_testing_)
    observer_for_testing_->OnHasEnrolledInstrumentReturned();
}

void PaymentRequest::RespondToHasEnrolledInstrumentQuery(
    bool has_enrolled_instrument,
    bool warn_local_development) {
  HasEnrolledInstrumentQueryResult positive =
      warn_local_development
          ? HasEnrolledInstrumentQueryResult::WARNING_HAS_ENROLLED_INSTRUMENT
          : HasEnrolledInstrumentQueryResult::HAS_ENROLLED_INSTRUMENT;
  HasEnrolledInstrumentQueryResult negative =
      warn_local_development
          ? HasEnrolledInstrumentQueryResult::WARNING_HAS_NO_ENROLLED_INSTRUMENT
          : HasEnrolledInstrumentQueryResult::HAS_NO_ENROLLED_INSTRUMENT;

  client_->OnHasEnrolledInstrument(has_enrolled_instrument ? positive
                                                           : negative);
  journey_logger_.SetHasEnrolledInstrumentValue(has_enrolled_instrument);
}

}  // namespace payments