private static string PreValidateHandling(string input, TelephoneOptions options)
{
if (options == null)
{
options = TelephoneOptions.Default;
}
input = TelephoneUtility.PreProcessingHandling(input, options);
return(input);
}
/// <summary>
/// Validate a phone number in length and signature of against an inbound (local) phone number rules
/// </summary>
/// <param name="phoneNumber"></param>
/// <param name="options"></param>
/// <returns></returns>
public static bool PhoneNumberInboundValidation(string phoneNumber, TelephoneOptions options = null)
{
phoneNumber = PreValidateHandling(phoneNumber, options);
if (phoneNumber.StartsWith("0") || phoneNumber.StartsWith("+"))
{
return(false);
}
return(PhoneNumberValidateLength(phoneNumber, options) && PhoneNumberValidateFormat(phoneNumber, options));
}
/// <summary>
/// Validate a phone number in length and signature of against an city phone number rules
/// </summary>
/// <param name="phoneNumber"></param>
/// <param name="options"></param>
/// <returns></returns>
public static bool PhoneNumberCityValidation(string phoneNumber, TelephoneOptions options = null)
{
phoneNumber = PreValidateHandling(phoneNumber, options);
if (phoneNumber.Length < 2 || phoneNumber[0] != '0' || phoneNumber[1] == '0')
{
return(false);
}
return(PhoneNumberValidateLength(phoneNumber, options) && PhoneNumberValidateFormat(phoneNumber, options));
}
/// <summary>
/// Validates only the total length of the phone number
/// </summary>
/// <param name="phoneNumber"></param>
/// <param name="options"></param>
/// <returns></returns>
public static bool PhoneNumberValidateLength(string phoneNumber, TelephoneOptions options = null)
{
phoneNumber = PreValidateHandling(phoneNumber, options);
var normalized = TelephoneNormalizer.ToPhoneNumberNormalization(phoneNumber, options);
if (normalized.Length < MinimumPhoneNumberLength || normalized.Length > MaximumPhoneNumberLength)
{
return(false);
}
return(true);
}
internal static string PreProcessingHandling(string input, TelephoneOptions options)
{
if (options == null)
{
options = TelephoneOptions.Default;
}
if (!options.ProcessNaturalCharacterOnly)
{
input = ToNaturalCharset(input);
// Stop this process from occured again on nested validations
options.ProcessNaturalCharacterOnly = true;
}
return(input);
}
/// <summary>
/// Validations only the signatures of the phone number
/// </summary>
/// <param name="phoneNumber"></param>
/// <param name="options"></param>
/// <returns></returns>
public static bool PhoneNumberValidateFormat(string phoneNumber, TelephoneOptions options = null)
{
phoneNumber = PreValidateHandling(phoneNumber, options);
if (!TelephoneUtility.CheckOpenCloseCharacter(phoneNumber, new List <OpenClose>
{
new OpenClose('(', ')'),
new OpenClose('[', ']')
}))
{
return(false);
}
if (RegexPhoneNumberBelow3Digit.IsMatch(phoneNumber))
{
return(true);
}
return(RegexPhoneNumber.IsMatch(phoneNumber));
}
/// <summary>
/// Validates phone number in length and signatures regardless that if the phone number is local, city or international number
/// </summary>
/// <param name="phoneNumber"></param>
/// <param name="options"></param>
/// <returns></returns>
public static bool PhoneNumberValidate(string phoneNumber, TelephoneOptions options = null)
{
phoneNumber = PreValidateHandling(phoneNumber, options);
return(PhoneNumberValidateFormat(phoneNumber, options) && PhoneNumberValidateLength(phoneNumber, options));
}
public static string ToPhoneNumberNormalization(string phoneNumber, TelephoneOptions options = null, string defaultI18nStart = "+")
{
phoneNumber = PreNormalizationHandling(phoneNumber, options);
if (defaultI18nStart != "+" && defaultI18nStart != "00")
{
throw new ArgumentOutOfRangeException(nameof(defaultI18nStart), defaultI18nStart, "parameter can only contains value of '+' or '00'");
}
if (phoneNumber == null)
{
return(null);
}
var digitOnly = DigitOnlyRegex.Replace(phoneNumber, "").Trim();
// var digitOnly = Regex.Replace(phoneNumber, @"[^\d]", "").Trim(); // TODO: Performance Monitor
#region Exceptional Normalizer
if (IsExceptionalPhoneNumber(out var exception, phoneNumber))
{
if (exception.CustomNormalizer != null)
{
return(exception.CustomNormalizer(phoneNumber));
}
#region International Prefix
if (phoneNumber.Trim().StartsWith("+"))
{
return((defaultI18nStart == "+" ? "+" : exception.InternationalPrefixes[0]) + digitOnly);
}
foreach (var intPrefix in exception.InternationalPrefixes)
{
if (digitOnly.StartsWith(intPrefix))
{
if (digitOnly.Length > intPrefix.Length)
{
return((defaultI18nStart == "+" ? "+" : intPrefix) + digitOnly.Substring(intPrefix.Length));
}
}
}
#endregion International Prefix
return(digitOnly); // National Prefix & No Prefix
}
#endregion Exceptional Normalizer
#region Default Normalizer (ITU-T Recommendation)
if (phoneNumber.Trim().StartsWith("+"))
{
return(defaultI18nStart + digitOnly);
}
if (digitOnly.StartsWith("00"))
{
if (digitOnly.Length > 2)
{
return(defaultI18nStart + digitOnly.Substring(2));
}
return(defaultI18nStart);
}
#endregion Default Normalizer (ITU-T Recommendation)
//Other 09132198895, 5553254
return(digitOnly); // National Prefix & No Prefix
}
