public void validateCardNumber(Context context, PaymentMethod paymentMethod) throws Exception {
// Empty field
if (TextUtils.isEmpty(cardNumber)) {
throw new Exception(context.getString(R.string.mpsdk_invalid_empty_card));
}
Setting setting =
Setting.getSettingByBin(
paymentMethod.getSettings(),
(cardNumber.length() >= MercadoPago.BIN_LENGTH
? cardNumber.substring(0, MercadoPago.BIN_LENGTH)
: ""));
if (setting == null) {
// Invalid bin
throw new Exception(context.getString(R.string.mpsdk_invalid_card_bin));
} else {
// Validate card length
int cardLength = setting.getCardNumber().getLength();
if (cardNumber.trim().length() != cardLength) {
throw new Exception(context.getString(R.string.mpsdk_invalid_card_length, cardLength));
}
// Validate luhn
String luhnAlgorithm = setting.getCardNumber().getValidation();
if (("standard".equals(luhnAlgorithm)) && (!checkLuhn(cardNumber))) {
throw new Exception(context.getString(R.string.mpsdk_invalid_card_luhn));
}
}
}
public static void validateSecurityCode(
Context context, String securityCode, PaymentMethod paymentMethod, String bin)
throws Exception {
if (paymentMethod != null) {
Setting setting = Setting.getSettingByBin(paymentMethod.getSettings(), bin);
// Validate security code length
if (setting != null) {
int cvvLength = setting.getSecurityCode().getLength();
if ((cvvLength != 0) && (securityCode.trim().length() != cvvLength)) {
throw new Exception(context.getString(R.string.mpsdk_invalid_cvv_length, cvvLength));
}
} else {
throw new Exception(context.getString(R.string.mpsdk_invalid_field));
}
}
}
