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net.optionfactory.spring.validation.ibans.Iban Maven / Gradle / Ivy
package net.optionfactory.spring.validation.ibans;
import jakarta.validation.Constraint;
import jakarta.validation.ConstraintValidator;
import jakarta.validation.ConstraintValidatorContext;
import jakarta.validation.Payload;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.regex.Pattern;
import net.optionfactory.spring.validation.ibans.Iban.IbanValidator;
@Target({ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER, ElementType.CONSTRUCTOR, ElementType.ANNOTATION_TYPE, ElementType.TYPE_USE})
@Retention(RetentionPolicy.RUNTIME)
@Constraint(validatedBy = IbanValidator.class)
@Documented
public @interface Iban {
String message() default "{jakarta.validation.constraints.Iban.message}";
Class[] groups() default {};
Class[] payload() default {};
public static class IbanFormat {
public int len;
public Pattern regex;
public static IbanFormat of(int len, String regex) {
IbanFormat i = new IbanFormat();
i.len = len;
i.regex = Pattern.compile(regex);
return i;
}
}
public static class IbanValidator implements ConstraintValidator {
private static final Map COUNTRY_CODE_TO_FORMAT = new ConcurrentHashMap<>();
static {
COUNTRY_CODE_TO_FORMAT.put("AD", IbanFormat.of(24, "^AD\\d{10}[A-Z0-9]{12}$")); // Andorra
COUNTRY_CODE_TO_FORMAT.put("AE", IbanFormat.of(23, "^AE\\d{21}$")); // United Arab Emirates
COUNTRY_CODE_TO_FORMAT.put("AL", IbanFormat.of(28, "^AL\\d{10}[A-Z0-9]{16}$")); // Albania
COUNTRY_CODE_TO_FORMAT.put("AT", IbanFormat.of(20, "^AT\\d{18}$")); // Austria
COUNTRY_CODE_TO_FORMAT.put("AZ", IbanFormat.of(28, "^AZ\\d{2}[A-Z]{4}[A-Z0-9]{20}$")); // Republic of Azerbaijan
COUNTRY_CODE_TO_FORMAT.put("BA", IbanFormat.of(20, "^BA\\d{18}$")); // Bosnia and Herzegovina
COUNTRY_CODE_TO_FORMAT.put("BE", IbanFormat.of(16, "^BE\\d{14}$")); // Belgium
COUNTRY_CODE_TO_FORMAT.put("BG", IbanFormat.of(22, "^BG\\d{2}[A-Z]{4}\\d{6}[A-Z0-9]{8}$")); // Bulgaria
COUNTRY_CODE_TO_FORMAT.put("BH", IbanFormat.of(22, "^BH\\d{2}[A-Z]{4}[A-Z0-9]{14}$")); // Bahrain (Kingdom of)
COUNTRY_CODE_TO_FORMAT.put("BR", IbanFormat.of(29, "^BR\\d{25}[A-Z]{1}[A-Z0-9]{1}$")); // Brazil
COUNTRY_CODE_TO_FORMAT.put("BY", IbanFormat.of(28, "^BY\\d{2}[A-Z0-9]{4}\\d{4}[A-Z0-9]{16}$")); // Republic of Belarus
COUNTRY_CODE_TO_FORMAT.put("CH", IbanFormat.of(21, "^CH\\d{7}[A-Z0-9]{12}$")); // Switzerland
COUNTRY_CODE_TO_FORMAT.put("CR", IbanFormat.of(22, "^CR\\d{20}$")); // Costa Rica
COUNTRY_CODE_TO_FORMAT.put("CY", IbanFormat.of(28, "^CY\\d{10}[A-Z0-9]{16}$")); // Cyprus
COUNTRY_CODE_TO_FORMAT.put("CZ", IbanFormat.of(24, "^CZ\\d{22}$")); // Czech Republic
COUNTRY_CODE_TO_FORMAT.put("DE", IbanFormat.of(22, "^DE\\d{20}$")); // Germany
COUNTRY_CODE_TO_FORMAT.put("DK", IbanFormat.of(18, "^DK\\d{16}$")); // Denmark
COUNTRY_CODE_TO_FORMAT.put("DO", IbanFormat.of(28, "^DO\\d{2}[A-Z0-9]{4}\\d{20}$")); // Dominican Republic
COUNTRY_CODE_TO_FORMAT.put("EE", IbanFormat.of(20, "^EE\\d{18}$")); // Estonia
COUNTRY_CODE_TO_FORMAT.put("ES", IbanFormat.of(24, "^ES\\d{22}$")); // Spain
COUNTRY_CODE_TO_FORMAT.put("FI", IbanFormat.of(18, "^FI\\d{16}$")); // Finland
COUNTRY_CODE_TO_FORMAT.put("FO", IbanFormat.of(18, "^FO\\d{16}$")); // Denmark (Faroes)
COUNTRY_CODE_TO_FORMAT.put("FR", IbanFormat.of(27, "^FR\\d{12}[A-Z0-9]{11}\\d{2}$")); // France
COUNTRY_CODE_TO_FORMAT.put("GB", IbanFormat.of(22, "^GB\\d{2}[A-Z]{4}\\d{14}$")); // United Kingdom
COUNTRY_CODE_TO_FORMAT.put("GE", IbanFormat.of(22, "^GE\\d{2}[A-Z]{2}\\d{16}$")); // Georgia
COUNTRY_CODE_TO_FORMAT.put("GI", IbanFormat.of(23, "^GI\\d{2}[A-Z]{4}[A-Z0-9]{15}$")); // Gibraltar
COUNTRY_CODE_TO_FORMAT.put("GL", IbanFormat.of(18, "^GL\\d{16}$")); // Denmark (Greenland)
COUNTRY_CODE_TO_FORMAT.put("GR", IbanFormat.of(27, "^GR\\d{9}[A-Z0-9]{16}$")); // Greece
COUNTRY_CODE_TO_FORMAT.put("GT", IbanFormat.of(28, "^GT\\d{2}[A-Z0-9]{24}$")); // Guatemala
COUNTRY_CODE_TO_FORMAT.put("HR", IbanFormat.of(21, "^HR\\d{19}$")); // Croatia
COUNTRY_CODE_TO_FORMAT.put("HU", IbanFormat.of(28, "^HU\\d{26}$")); // Hungary
COUNTRY_CODE_TO_FORMAT.put("IE", IbanFormat.of(22, "^IE\\d{2}[A-Z]{4}\\d{14}$")); // Ireland
COUNTRY_CODE_TO_FORMAT.put("IL", IbanFormat.of(23, "^IL\\d{21}$")); // Israel
COUNTRY_CODE_TO_FORMAT.put("IS", IbanFormat.of(26, "^IS\\d{24}$")); // Iceland
COUNTRY_CODE_TO_FORMAT.put("IT", IbanFormat.of(27, "^IT\\d{2}[A-Z]{1}\\d{10}[A-Z0-9]{12}$")); // Italy
COUNTRY_CODE_TO_FORMAT.put("IQ", IbanFormat.of(23, "^IQ\\d{2}[A-Z]{4}\\d{15}$")); // Iraq
COUNTRY_CODE_TO_FORMAT.put("JO", IbanFormat.of(30, "^JO\\d{2}[A-Z]{4}\\d{4}[A-Z0-9]{18}$")); // Jordan
COUNTRY_CODE_TO_FORMAT.put("KW", IbanFormat.of(30, "^KW\\d{2}[A-Z]{4}[A-Z0-9]{22}$")); // Kuwait
COUNTRY_CODE_TO_FORMAT.put("KZ", IbanFormat.of(20, "^KZ\\d{5}[A-Z0-9]{13}$")); // Kazakhstan
COUNTRY_CODE_TO_FORMAT.put("LB", IbanFormat.of(28, "^LB\\d{6}[A-Z0-9]{20}$")); // Lebanon
COUNTRY_CODE_TO_FORMAT.put("LC", IbanFormat.of(32, "^LC\\d{2}[A-Z]{4}[A-Z0-9]{24}$")); // Saint Lucia
COUNTRY_CODE_TO_FORMAT.put("LI", IbanFormat.of(21, "^LI\\d{7}[A-Z0-9]{12}$")); // Liechtenstein (Principality of)
COUNTRY_CODE_TO_FORMAT.put("LT", IbanFormat.of(20, "^LT\\d{18}$")); // Lithuania
COUNTRY_CODE_TO_FORMAT.put("LU", IbanFormat.of(20, "^LU\\d{5}[A-Z0-9]{13}$")); // Luxembourg
COUNTRY_CODE_TO_FORMAT.put("LV", IbanFormat.of(21, "^LV\\d{2}[A-Z]{4}[A-Z0-9]{13}$")); // Latvia
COUNTRY_CODE_TO_FORMAT.put("MC", IbanFormat.of(27, "^MC\\d{12}[A-Z0-9]{11}\\d{2}$")); // Monaco
COUNTRY_CODE_TO_FORMAT.put("MD", IbanFormat.of(24, "^MD\\d{2}[A-Z0-9]{20}$")); // Moldova
COUNTRY_CODE_TO_FORMAT.put("ME", IbanFormat.of(22, "^ME\\d{20}$")); // Montenegro
COUNTRY_CODE_TO_FORMAT.put("MK", IbanFormat.of(19, "^MK\\d{5}[A-Z0-9]{10}\\d{2}$")); // Macedonia, Former Yugoslav Republic of
COUNTRY_CODE_TO_FORMAT.put("MR", IbanFormat.of(27, "^MR\\d{25}$")); // Mauritania
COUNTRY_CODE_TO_FORMAT.put("MT", IbanFormat.of(31, "^MT\\d{2}[A-Z]{4}\\d{5}[A-Z0-9]{18}$")); // Malta
COUNTRY_CODE_TO_FORMAT.put("MU", IbanFormat.of(30, "^MU\\d{2}[A-Z]{4}\\d{19}[A-Z]{3}$")); // Mauritius
COUNTRY_CODE_TO_FORMAT.put("NL", IbanFormat.of(18, "^NL\\d{2}[A-Z]{4}\\d{10}$")); // The Netherlands
COUNTRY_CODE_TO_FORMAT.put("NO", IbanFormat.of(15, "^NO\\d{13}$")); // Norway
COUNTRY_CODE_TO_FORMAT.put("PK", IbanFormat.of(24, "^PK\\d{2}[A-Z]{4}[A-Z0-9]{16}$")); // Pakistan
COUNTRY_CODE_TO_FORMAT.put("PL", IbanFormat.of(28, "^PL\\d{26}$")); // Poland
COUNTRY_CODE_TO_FORMAT.put("PS", IbanFormat.of(29, "^PS\\d{2}[A-Z]{4}[A-Z0-9]{21}$")); // Palestine, State of
COUNTRY_CODE_TO_FORMAT.put("PT", IbanFormat.of(25, "^PT\\d{23}$")); // Portugal
COUNTRY_CODE_TO_FORMAT.put("QA", IbanFormat.of(29, "^QA\\d{2}[A-Z]{4}[A-Z0-9]{21}$")); // Qatar
COUNTRY_CODE_TO_FORMAT.put("RO", IbanFormat.of(24, "^RO\\d{2}[A-Z]{4}[A-Z0-9]{16}$")); // Romania
COUNTRY_CODE_TO_FORMAT.put("RS", IbanFormat.of(22, "^RS\\d{20}$")); // Serbia
COUNTRY_CODE_TO_FORMAT.put("SA", IbanFormat.of(24, "^SA\\d{4}[A-Z0-9]{18}$")); // Saudi Arabia
COUNTRY_CODE_TO_FORMAT.put("SC", IbanFormat.of(31, "^SC\\d{2}[A-Z]{4}\\d{20}[A-Z]{3}$")); // Seychelles
COUNTRY_CODE_TO_FORMAT.put("SE", IbanFormat.of(24, "^SE\\d{22}$")); // Sweden
COUNTRY_CODE_TO_FORMAT.put("SI", IbanFormat.of(19, "^SI\\d{17}$")); // Slovenia
COUNTRY_CODE_TO_FORMAT.put("SK", IbanFormat.of(24, "^SK\\d{22}$")); // Slovak Republic
COUNTRY_CODE_TO_FORMAT.put("SM", IbanFormat.of(27, "^SM\\d{2}[A-Z]{1}\\d{10}[A-Z0-9]{12}$")); // San Marino
COUNTRY_CODE_TO_FORMAT.put("ST", IbanFormat.of(25, "^ST\\d{23}$")); // Sao Tome and Principe
COUNTRY_CODE_TO_FORMAT.put("TL", IbanFormat.of(23, "^TL\\d{21}$")); // Timor-Leste
COUNTRY_CODE_TO_FORMAT.put("TN", IbanFormat.of(24, "^TN\\d{22}$")); // Tunisia
COUNTRY_CODE_TO_FORMAT.put("TR", IbanFormat.of(26, "^TR\\d{8}[A-Z0-9]{16}$")); // Turkey
COUNTRY_CODE_TO_FORMAT.put("UA", IbanFormat.of(29, "^UA\\d{8}[A-Z0-9]{19}$")); // Ukraine
COUNTRY_CODE_TO_FORMAT.put("VA", IbanFormat.of(22, "^VA\\d{2}[A-Z0-9]{18}$")); // Vatican
COUNTRY_CODE_TO_FORMAT.put("VG", IbanFormat.of(24, "^VG\\d{2}[A-Z]{4}\\d{16}$")); // Virgin Islands, British
COUNTRY_CODE_TO_FORMAT.put("XK", IbanFormat.of(20, "^XK\\d{18}$")); // Republic of Kosovo
}
public static int getNumericValue(final int ch) {
return Character.isDigit(ch) ? ch - '0' : ch - 'A' + 10;
}
@Override
public boolean isValid(String value, ConstraintValidatorContext context) {
if (value == null) {
return true;
}
if (value.length() < 4) {
return false;
}
final String trimmed = value.trim().toUpperCase();
final String countryCode = trimmed.substring(0, 2);
final String check = trimmed.substring(2, 4);
final String rest = trimmed.substring(4);
final IbanFormat format = COUNTRY_CODE_TO_FORMAT.get(countryCode);
if (format == null) {
return false;
}
if (trimmed.length() != format.len) {
//Check that the total IBAN length is correct as per the country. If not, the IBAN is invalid
return false;
}
if (!format.regex.matcher(trimmed).matches()) {
return false;
}
if ("00".equals(check) || "01".equals(check) || "99".equals(check)) {
return false;
}
final String reformatted = rest + countryCode + check;
long total = 0;
for (int i = 0; i < reformatted.length(); i++) {
final char nth = reformatted.charAt(i);
final int charValue = Character.isDigit(nth) ? nth - '0' : nth - 'A' + 10;
total = (charValue > 9 ? total * 100 : total * 10) + charValue;
if (total > 999_999_999) {
total = total % 97;
}
}
final boolean validCheck = (total % 97) == 1 ;
return validCheck;
}
}
}
