Net.Pkcs11Interop.Common.Pkcs11Uri.ParseQueryAttribute C# (CSharp) Method

        private void ParseQueryAttribute(string attribute)
        {
            int separatorIndex = attribute.IndexOf(Pkcs11UriSpec.Pk11QueryAttributeNameAndValueSeparator);
            if (separatorIndex == -1)
                throw new Pkcs11UriException("Attribute name and value are not separated");

            string attributeName = attribute.Substring(0, separatorIndex);
            string attributeValue = attribute.Substring(separatorIndex + 1);

            switch (attributeName)
            {
                case Pkcs11UriSpec.Pk11PinSource:

                    if (_pinSource != null)
                        throw new Pkcs11UriException("Duplicate attribute " + attributeName + " found in the query component");

                    if (attributeValue != string.Empty)
                    {
                        byte[] bytes = DecodePk11String(attributeName, attributeValue, Pkcs11UriSpec.Pk11QueryAttrValueChars, true);
                        _pinSource = ConvertUtils.BytesToUtf8String(bytes);
                    }
                    else
                    {
                        _pinSource = string.Empty;
                    }

                    break;

                case Pkcs11UriSpec.Pk11PinValue:

                    if (_pinValue != null)
                        throw new Pkcs11UriException("Duplicate attribute " + attributeName + " found in the query component");

                    if (attributeValue != string.Empty)
                    {
                        byte[] bytes = DecodePk11String(attributeName, attributeValue, Pkcs11UriSpec.Pk11QueryAttrValueChars, true);
                        _pinValue = ConvertUtils.BytesToUtf8String(bytes);
                    }
                    else
                    {
                        _pinValue = string.Empty;
                    }

                    break;

                case Pkcs11UriSpec.Pk11ModuleName:

                    if (_moduleName != null)
                        throw new Pkcs11UriException("Duplicate attribute " + attributeName + " found in the query component");

                    if (attributeValue != string.Empty)
                    {
                        byte[] bytes = DecodePk11String(attributeName, attributeValue, Pkcs11UriSpec.Pk11QueryAttrValueChars, true);
                        _moduleName = ConvertUtils.BytesToUtf8String(bytes);
                    }
                    else
                    {
                        _moduleName = string.Empty;
                    }

                    break;

                case Pkcs11UriSpec.Pk11ModulePath:

                    if (_modulePath != null)
                        throw new Pkcs11UriException("Duplicate attribute " + attributeName + " found in the query component");

                    if (attributeValue != string.Empty)
                    {
                        byte[] bytes = DecodePk11String(attributeName, attributeValue, Pkcs11UriSpec.Pk11QueryAttrValueChars, true);
                        _modulePath = ConvertUtils.BytesToUtf8String(bytes);
                    }
                    else
                    {
                        _modulePath = string.Empty;
                    }

                    break;

                default:

                    if (string.IsNullOrEmpty(attributeName))
                        throw new Pkcs11UriException("Attribute without name found in the query component");

                    byte[] vendorAttrName = DecodePk11String(null, attributeName, Pkcs11UriSpec.Pk11VendorAttrNameChars, false);
                    attributeName = ConvertUtils.BytesToUtf8String(vendorAttrName);

                    if (attributeValue != string.Empty)
                    {
                        byte[] vendorAttrValue = DecodePk11String(attributeName, attributeValue, Pkcs11UriSpec.Pk11QueryAttrValueChars, true);
                        attributeValue = ConvertUtils.BytesToUtf8String(vendorAttrValue);
                    }

                    if (_unknownQueryAttributes.ContainsKey(attributeName))
                        _unknownQueryAttributes[attributeName].Add(attributeValue);
                    else
                        _unknownQueryAttributes.Add(attributeName, new List<string>() { attributeValue });

                    break;
            }
        }