1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_AUTOFILL_CORE_COMMON_CREDIT_CARD_NUMBER_VALIDATION_H_
#define COMPONENTS_AUTOFILL_CORE_COMMON_CREDIT_CARD_NUMBER_VALIDATION_H_
#include <string_view>
namespace autofill {
// Returns true if `text` looks like a valid credit card number.
// Uses the Luhn formula to validate the number.
bool IsValidCreditCardNumber(std::u16string_view text);
// Returns true if `number` has correct length according to card network.
bool HasCorrectCreditCardNumberLength(std::u16string_view number);
// Returns true if `number` passes the validation by Luhn formula.
bool PassesLuhnCheck(std::u16string_view number);
// Returns a version of `number` that has any separator characters removed.
std::u16string StripCardNumberSeparators(std::u16string_view number);
// Returns the internal representation of card issuer network corresponding to
// the given `number`. The card issuer network is determined purely according
// to the Issuer Identification Number (IIN), a.k.a. the "Bank Identification
// Number (BIN)", which is parsed from the relevant prefix of the `number`. This
// function performs no additional validation checks on the `number`. Hence, the
// returned issuer network for both the valid card "4111-1111-1111-1111" and the
// invalid card "4garbage" will be Visa, which has an IIN of 4.
const char* GetCardNetwork(std::u16string_view number);
// The well-formatted full digits for display. A whitespace will be added as a
// separator between digits, e.g. "1234 5678 9000 0000"
std::u16string GetFormattedCardNumberForDisplay(std::u16string_view number);
} // namespace autofill
#endif // COMPONENTS_AUTOFILL_CORE_COMMON_CREDIT_CARD_NUMBER_VALIDATION_H_
|
