Card unmasking without form filling

components/autofill/core/browser/payments/full_card_request.h

+// 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.
+
+#ifndef COMPONENTS_AUTOFILL_CORE_BROWSER_PAYMENTS_FULL_CARD_REQUEST_H_
+#define COMPONENTS_AUTOFILL_CORE_BROWSER_PAYMENTS_FULL_CARD_REQUEST_H_
+
+#include <memory>
+#include <string>
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "base/strings/string16.h"
+#include "base/time/time.h"
+#include "components/autofill/core/browser/card_unmask_delegate.h"
+#include "components/autofill/core/browser/payments/payments_client.h"
+
+namespace autofill {
+
+class AutofillClient;
+class CreditCard;
+class PersonalDataManager;
+
+namespace payments {
+
+// Retrieves the full card details, including the pan and the cvc.
+class FullCardRequest : public CardUnmaskDelegate {
+ public:
+  // The interface for receiving the full card details.
+  class Delegate {
+   public:
+    virtual void OnFullCardDetails(const CreditCard& card,
+                                   const base::string16& cvc) = 0;
+    virtual void OnFullCardError() = 0;
+  };
+
+  // The parameters should outlive the FullCardRequest.
+  FullCardRequest(AutofillClient* autofill_client,
+                  payments::PaymentsClient* payments_client,
+                  PersonalDataManager* personal_data_manager);
+  ~FullCardRequest();
+
+  // Retrieves the pan and cvc for |card| and invokes
+  // Delegate::OnFullCardDetails() or Delegate::OnFullCardError(). Only one
+  // request should be active at a time.
+  void GetFullCard(const CreditCard& card,
+                   AutofillClient::UnmaskCardReason reason,
+                   base::WeakPtr<Delegate> delegate);
+
+  // Returns true if there's a pending request to get the full card.
+  bool IsGettingFullCard() const;
+
+  // Called by the payments client when a card has been unmasked.
+  void OnDidGetRealPan(AutofillClient::PaymentsRpcResult result,
+                       const std::string& real_pan);
+ private:
+  // CardUnmaskDelegate:
+  void OnUnmaskResponse(const UnmaskResponse& response) override;
+  void OnUnmaskPromptClosed() override;
+
+  // Called by autofill client when the risk data has been loaded.
+  void OnDidGetUnmaskRiskData(const std::string& risk_data);
+
+  // Responsible for showing the UI that prompts the user for the CVC and/or the
+  // updated expiration date.
+  AutofillClient* const autofill_client_;
+
+  // Responsible for unmasking a masked server card.
+  payments::PaymentsClient* const payments_client_;
+
+  // Responsible for updating the server card on disk after it's been unmasked.
+  PersonalDataManager* const personal_data_manager_;
+
+  // Receiver of the full PAN and CVC.
+  base::WeakPtr<Delegate> delegate_;
+
+  // The pending request to get a card's full PAN and CVC.
+  std::unique_ptr<payments::PaymentsClient::UnmaskRequestDetails> request_;
+
+  // The timestamp when the full PAN was requested from a server. For
+  // histograms.
+  base::Time real_pan_request_timestamp_;
+
+  // Enables destroying FullCardRequest while CVC prompt is showing or a server
+  // communication is pending.
+  base::WeakPtrFactory<FullCardRequest> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(FullCardRequest);
+};
+
+}  // namespace payments
+}  // namespace autofill
+
+#endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_PAYMENTS_FULL_CARD_REQUEST_H_