io.bitsquare.gui.util.validation.AccountNrValidator.java Source code

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Here is the source code for io.bitsquare.gui.util.validation.AccountNrValidator.java

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/*
 * This file is part of Bitsquare.
 *
 * Bitsquare is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or (at
 * your option) any later version.
 *
 * Bitsquare is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Bitsquare. If not, see <http://www.gnu.org/licenses/>.
 */

package io.bitsquare.gui.util.validation;

import io.bitsquare.locale.BSResources;
import io.bitsquare.locale.BankUtil;
import org.apache.commons.lang3.StringUtils;

public final class AccountNrValidator extends BankValidator {
    public AccountNrValidator(String countryCode) {
        super(countryCode);
    }

    @Override
    public ValidationResult validate(String input) {
        int length;
        String input2;
        switch (countryCode) {
        case "GB":
            length = 8;
            if (isNumberWithFixedLength(input, length))
                return super.validate(input);
            else
                return new ValidationResult(false, BSResources.get("validation.accountNr", length));
        case "US":
            if (isNumberInRange(input, 4, 17))
                return super.validate(input);
            else
                return new ValidationResult(false, BSResources.get("validation.accountNr", "4 - 17"));
        case "BR":
            if (isStringInRange(input, 1, 20))
                return super.validate(input);
            else
                return new ValidationResult(false, BSResources.get("validation.accountNrChars", "1 - 20"));
        case "NZ":
            input2 = input != null ? input.replaceAll("-", "") : null;
            if (isNumberInRange(input2, 15, 16))
                return super.validate(input);
            else
                return new ValidationResult(false, "Account number must be of format: 03-1587-0050000-00");
        case "AU":
            if (isNumberInRange(input, 4, 10))
                return super.validate(input);
            else
                return new ValidationResult(false, BSResources.get("validation.accountNr", "4 - 10"));
        case "CA":
            if (isNumberInRange(input, 7, 12))
                return super.validate(input);
            else
                return new ValidationResult(false, BSResources.get("validation.accountNr", "7 - 12"));
        case "MX":
            length = 18;
            if (isNumberWithFixedLength(input, length))
                return super.validate(input);
            else
                return new ValidationResult(false,
                        BSResources.get("validation.sortCodeNumber", getLabel(), length));
        case "HK":
            input2 = input != null ? input.replaceAll("-", "") : null;
            if (isNumberInRange(input2, 9, 12))
                return super.validate(input);
            else
                return new ValidationResult(false, "Account number must be of format: 005-231289-112");
        case "NO":
            if (input != null) {
                length = 11;
                // Provided by sturles:
                // https://github.com/bitsquare/bitsquare/pull/707

                // https://no.wikipedia.org/wiki/MOD11#Implementasjoner_i_forskjellige_programmeringspr.C3.A5k
                // https://en.wikipedia.org/wiki/International_Bank_Account_Number#Generating_IBAN_check_digits6

                // 11 digits, last digit is checksum.  Checksum algoritm is 
                // MOD11 with weights 2,3,4,5,6,7,2,3,4,5 right to left.
                // First remove whitespace and periods.  Normal formatting is: 
                // 1234.56.78903
                input2 = StringUtils.remove(input, " ");
                input2 = StringUtils.remove(input2, ".");
                // 11 digits, numbers only
                if (input2.length() != length || !StringUtils.isNumeric(input2))
                    return new ValidationResult(false,
                            BSResources.get("validation.sortCodeNumber", getLabel(), length));
                int lastDigit = Character.getNumericValue(input2.charAt(input2.length() - 1));
                if (getMod11ControlDigit(input2) != lastDigit)
                    return new ValidationResult(false, "Kontonummer har feil sjekksum");
                else
                    return super.validate(input);
            } else {
                return super.validate(input);
            }
        default:
            return super.validate(input);
        }

    }

    private int getMod11ControlDigit(String accountNrString) {
        int sumForMod = 0;
        int controlNumber = 2;
        char[] accountNr = accountNrString.toCharArray();

        for (int i = accountNr.length - 2; i >= 0; i--) {
            sumForMod += (Character.getNumericValue(accountNr[i]) * controlNumber);
            controlNumber++;

            if (controlNumber > 7) {
                controlNumber = 2;
            }
        }
        int calculus = (11 - sumForMod % 11);
        if (calculus == 11) {
            return 0;
        } else {
            return calculus;
        }
    }

    private String getLabel() {
        String label = BankUtil.getAccountNrLabel(countryCode);
        return label.substring(0, label.length() - 1);
    }
}