Add CreditCard, a form group that stores credit card information.

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/518031

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@35645 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 125 insertions, 0 deletions

diff --git a/chrome/browser/autofill/credit_card.h b/chrome/browser/autofill/credit_card.h
new file mode 100644
index 0000000..d686bbc
--- /dev/null
+++ b/chrome/browser/autofill/credit_card.h
@@ -0,0 +1,125 @@
+// Copyright (c) 2010 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 CHROME_BROWSER_AUTOFILL_CREDIT_CARD_H_
+#define CHROME_BROWSER_AUTOFILL_CREDIT_CARD_H_
+
+#include <vector>
+
+#include "base/string16.h"
+#include "chrome/browser/autofill/form_group.h"
+
+// A form group that stores credit card information.
+class CreditCard : public FormGroup {
+ public:
+  explicit CreditCard(const string16& label);
+
+  // FormGroup implementation:
+  FormGroup* Clone() const;
+  virtual void GetPossibleFieldTypes(const string16& text,
+                                     FieldTypeSet* possible_types) const;
+  virtual void FindInfoMatches(const AutoFillType& type,
+                               const string16& info,
+                               std::vector<string16>* matched_text) const;
+  virtual string16 GetFieldText(const AutoFillType& type) const;
+  virtual string16 GetPreviewText(const AutoFillType& type) const;
+  virtual void SetInfo(const AutoFillType& type, const string16& value);
+  string16 Label() const { return label_; }
+
+  // The month and year are zero if not present.
+  int Expiration4DigitYear() const { return expiration_year_; }
+  int Expiration2DigitYear() const { return expiration_year_ % 100; }
+  string16 ExpirationMonthAsString() const;
+  string16 Expiration4DigitYearAsString() const;
+  string16 Expiration2DigitYearAsString() const;
+
+  // Sets |expiration_month_| to the integer conversion of |text|.
+  void SetExpirationMonthFromString(const string16& text);
+
+  // Sets |expiration_year_| to the integer conversion of |text|.
+  void SetExpirationYearFromString(const string16& text);
+
+  string16 number() const { return number_; }
+  string16 name_on_card() const { return name_on_card_; }
+  string16 type() const { return type_; }
+  string16 verification_code() const { return verification_code_; }
+  string16 last_four_digits() const { return last_four_digits_; }
+  int expiration_month() const { return expiration_month_; }
+  int expiration_year() const { return expiration_year_; }
+
+  void set_number(const string16& number) { number_ = number; }
+  void set_name_on_card(const string16& name_on_card) {
+    name_on_card_ = name_on_card;
+  }
+  void set_type(const string16& type) { type_ = type; }
+  void set_verification_code(const string16& verification_code) {
+    verification_code_ = verification_code;
+  }
+  void set_last_four_digits(const string16& last_four_digits) {
+    last_four_digits_ = last_four_digits;
+  }
+
+  // These setters verify that the month and year are within appropriate
+  // ranges.
+  void set_expiration_month(int expiration_month);
+  void set_expiration_year(int expiration_year);
+
+ private:
+  explicit CreditCard(const CreditCard& card);
+  void operator=(const CreditCard& card);
+
+  // A helper function for FindInfoMatches that only handles matching the info
+  // with the requested field type.
+  bool FindInfoMatchesHelper(const AutoFillFieldType& field_type,
+                             const string16& info,
+                             string16* match) const;
+
+  // Returns true if |text| matches the name on the card.  The comparison is
+  // case-insensitive.
+  bool IsNameOnCard(const string16& text) const;
+
+  // Uses the Luhn formula to validate the credit card number in |text|.
+  static bool IsCreditCardNumber(const string16& text);
+
+  // Returns true if |text| matches the expiration month of the card.
+  bool IsExpirationMonth(const string16& text) const;
+
+  // Returns true if |text| matches the CVV of the card.  The comparison is
+  // case-insensitive.
+  bool IsVerificationCode(const string16& text) const;
+
+  // Returns true if the integer value of |text| matches the 2-digit expiration
+  // year.
+  bool Is2DigitExpirationYear(const string16& text) const;
+
+  // Returns true if the integer value of |text| matches the 4-digit expiration
+  // year.
+  bool Is4DigitExpirationYear(const string16& text) const;
+
+  // Returns true if |text| matches the type of the card.  The comparison is
+  // case-insensitive.
+  bool IsCardType(const string16& text) const;
+
+  // Converts |date| to an integer form.  Returns true if the conversion
+  // succeeded.
+  bool ConvertDate(const string16& date, int* num) const;
+
+  // The credit card values.
+  string16 number_;  // The encrypted credit card number.
+  string16 name_on_card_;  // The cardholder's name.
+  string16 type_;  // The type of the card.
+  string16 verification_code_;  // The CVV.
+
+  // Stores the last four digits of the credit card number.
+  string16 last_four_digits_;
+
+  // These members are zero if not present.
+  int expiration_month_;
+  int expiration_year_;
+
+  // This is the display name of the card set by the user, e.g., Amazon Visa.
+  string16 label_;
+};
+
+#endif  // CHROME_BROWSER_AUTOFILL_CREDIT_CARD_H_