private List <AnonymizedData> GetAnonymizedData(string segmentText)
{
var anonymizedData = new List <AnonymizedData>();
foreach (var pattern in _patterns)
{
var regex = DecryptIfEncrypted(pattern);
var matches = regex.Matches(segmentText);
foreach (Match match in matches)
{
if (match.Value.Length > 0)
{
var data = new AnonymizedData
{
MatchText = match.Value,
PositionInOriginalText = match.Index,
EncryptedText = AnonymizeData.EncryptData(match.ToString(), _encryptionKey)
};
anonymizedData.Add(data);
}
}
}
return(anonymizedData);
}
private string DecryptText(string encryptedText)
{
var isOldVersion = _decryptSettings.IsOldVersion ?? false;
var encryptedKey = _decryptSettings.EncryptionKey;
var decryptedKey = AnonymizeData.DecryptData(encryptedKey, Constants.Key);
var key = isOldVersion ? encryptedKey : decryptedKey;
_decryptSettings.IsOldVersion = false;
return(AnonymizeData.DecryptData(encryptedText, key));
}
private string ProcessMatchData(Match match, RegexPattern pattern, bool isTagContent)
{
//Check if the match should be encrypted
var encryptedText = pattern.ShouldEncrypt ? AnonymizeData.EncryptData(match.ToString(), _encryptionKey) : match.ToString();
//For tag content we need to add {} for decrypting the data
if (isTagContent)
{
return(string.Concat("{", encryptedText, "}"));
}
return(encryptedText);
}
private Regex DecryptIfEncrypted(RegexPattern pattern)
{
return(new Regex(!_arePatternsEcrypted ? pattern.Pattern : AnonymizeData.DecryptData(pattern.Pattern, _encryptionKey), RegexOptions.IgnoreCase));
}