public MrzLine2 ParseMrzLine2FromString(string rawMrz)
{
MrzLine2 mrzLine2 = new MrzLine2();
try
{
//All characters need to be uppercase
rawMrz = rawMrz.ToUpper();
mrzLine2.PassportNumber = PassportValidatorHelper.ParseForString(rawMrz, PassportNumberLookup.Index, PassportNumberLookup.Length);
mrzLine2.CheckDigitPassportNumber = PassportValidatorHelper.ParseForString(rawMrz, PassportNumberCheckDigitLookup.Index, PassportNumberCheckDigitLookup.Length);
mrzLine2.Nationality = (Nationality)PassportValidatorHelper.ParseForEnum(rawMrz, NationalityLookup.Index, NationalityLookup.Length, typeof(Nationality));
mrzLine2.DateOfBirth = PassportValidatorHelper.ParseForDateTime(rawMrz, DateofBirthLookup.Index, DateofBirthLookup.Length, DateMask);
mrzLine2.CheckDigitDateOfBirth = PassportValidatorHelper.ParseForString(rawMrz, CheckDigitDateOfBirthLookup.Index, CheckDigitDateOfBirthLookup.Length);
mrzLine2.Gender = (Gender)PassportValidatorHelper.ParseForEnum(rawMrz, GenderLookup.Index, GenderLookup.Length, typeof(Gender));
mrzLine2.DateOfExpiry = PassportValidatorHelper.ParseForDateTime(rawMrz, ExpiryDateLookup.Index, ExpiryDateLookup.Length, DateMask);
mrzLine2.CheckDigitDateOfExpiry = PassportValidatorHelper.ParseForString(rawMrz, ExpiryCheckDigitLookup.Index, ExpiryCheckDigitLookup.Length);
mrzLine2.PersonalNumber = PassportValidatorHelper.ParseForString(rawMrz, PersonalNumberLookup.Index, PersonalNumberLookup.Length);
mrzLine2.CheckDigitPersonalNumber = PassportValidatorHelper.ParseForString(rawMrz, PersonalNumberCheckDigitLookup.Index, PersonalNumberCheckDigitLookup.Length);
mrzLine2.CheckDigitOverall = PassportValidatorHelper.ParseForString(rawMrz, CompositeCheckDigitLookup.Index, CompositeCheckDigitLookup.Length);
}
catch (Exception)
{
//Throw the exception up the stack
throw;
}
return(mrzLine2);
}
public ValidationResults ValidateMrzAndBaseData(PassportBaseData baseData, MrzLine2 mrzLine2)
{
ValidationResults results = new ValidationResults();
//Check digits against what was passed into mrzline2
results.PassportNumberCheckDigit = CheckDigitHelper.CalculateCheckDigit(mrzLine2.PassportNumber) == mrzLine2.CheckDigitPassportNumber ? true : false;
results.DateOfBirthCheckDigit = CheckDigitHelper.CalculateCheckDigit(mrzLine2.DateOfBirth.ToString("yyMMdd")) == mrzLine2.CheckDigitDateOfBirth ? true : false;
results.PassportExpirationDateCheckDigit = CheckDigitHelper.CalculateCheckDigit(mrzLine2.DateOfExpiry.ToString("yyMMdd")) == mrzLine2.CheckDigitDateOfExpiry ? true : false;
results.PersonalNumberCheckDigit = CheckDigitHelper.CalculateCheckDigit(mrzLine2.PersonalNumber) == mrzLine2.CheckDigitPersonalNumber ? true : false;
//Composite check digit is all fields on line 2 minus nationality and gender
string compositeCheckDigit = mrzLine2.PassportNumber +
mrzLine2.CheckDigitPassportNumber +
mrzLine2.DateOfBirth.ToString("yyMMdd") +
mrzLine2.CheckDigitDateOfBirth +
mrzLine2.DateOfExpiry.ToString("yyMMdd") +
mrzLine2.CheckDigitDateOfExpiry +
mrzLine2.PersonalNumber +
mrzLine2.CheckDigitPersonalNumber;
results.FinalCheckDigit = CheckDigitHelper.CalculateCheckDigit(compositeCheckDigit) == mrzLine2.CheckDigitOverall ? true : false;
//Do a cross check between what the user entered vs what's on mrzline2
results.GenderCrossCheck = baseData.Gender == mrzLine2.Gender ? true : false;
results.DateOfBirthCrossCheck = baseData.DateOfBirth.ToString(DateMask) == mrzLine2.DateOfBirth.ToString(DateMask) ? true : false;
results.ExpirationDateCrossCheck = baseData.DateOfExpiry.ToString(DateMask) == mrzLine2.DateOfExpiry.ToString(DateMask) ? true : false;
results.NationalityCrossCheck = baseData.Nationality == mrzLine2.Nationality ? true : false;
results.PassportNumberCrossCheck = baseData.PassportNumber.ZeroFillerChars() == mrzLine2.PassportNumber ? true : false;
return(results);
}
public void Validate_Valid_Passport_Returns_Validated_Results()
{
var mockMrzParse = new Mock <IParseMrzLine2>();
var mockMrzValidator = new Mock <IMrzValidator>();
//We need to mock the IMapper, use the existing profile and pass this in
var mockMapper = new MapperConfiguration(cfg =>
{
cfg.AddProfile(new MappingProfile());
});
var mapper = mockMapper.CreateMapper();
PassportValidator controller = new PassportValidator(mockMrzParse.Object, mockMrzValidator.Object, mapper);
PassportInput passportInput = new PassportInput()
{
PassportNumber = "112256503",
Nationality = Nationality.GBR,
DateOfBirth = new DateTime(1989, 02, 12),
Gender = Gender.M,
DateOfExpiry = new DateTime(2020, 10, 01),
MrzLine2 = "1122565035GBR8902122M2010016<<<<<<<<<<<<<<04"
};
MrzLine2 fakeMrzLine2 = new MrzLine2()
{
PassportNumber = "112256503",
CheckDigitPassportNumber = "5",
Nationality = Nationality.GBR,
DateOfBirth = new DateTime(1989, 02, 12),
CheckDigitDateOfBirth = "2",
Gender = Gender.M,
DateOfExpiry = new DateTime(2020, 10, 01),
CheckDigitDateOfExpiry = "6",
PersonalNumber = "",
CheckDigitPersonalNumber = "0",
CheckDigitOverall = "4"
};
ValidationResults expectedValidationResults = new ValidationResults()
{
PassportNumberCheckDigit = true,
DateOfBirthCheckDigit = true,
PassportExpirationDateCheckDigit = true,
PersonalNumberCheckDigit = true,
FinalCheckDigit = true,
GenderCrossCheck = true,
DateOfBirthCrossCheck = true,
ExpirationDateCrossCheck = true,
NationalityCrossCheck = true,
PassportNumberCrossCheck = true
};
mockMrzParse.Setup(x => x.ParseMrzLine2FromString(It.IsAny <string>())).Returns(fakeMrzLine2);
mockMrzValidator.Setup(x => x.ValidateMrzAndBaseData(It.IsAny <PassportBaseData>(), It.IsAny <MrzLine2>())).Returns(expectedValidationResults);
ValidationResults returnedValidationResults = controller.Validate(passportInput).Value;
Assert.Equal(expectedValidationResults, returnedValidationResults);
}
public ActionResult <ValidationResults> Validate([FromBody] PassportInput input)
{
//Map view model onto model
PassportBaseData baseData = _mapper.Map <PassportBaseData>(input);
try
{
//Get the Mrzline2 string into a manageable object
MrzLine2 mrzLine2 = _parsemrzLine2.ParseMrzLine2FromString(input.MrzLine2);
//Check all data on the mrzline2 and whether what the user entered matches the mrzline2
return(_mrzValidator.ValidateMrzAndBaseData(baseData, mrzLine2));
}
catch (Exception e)
{
//Always return a bad status code with the exception to the view
return(BadRequest(e));
}
}
