private static ExtractAccountIdAndServerIdFromTokenResult?ExtractAccountIdAndServerIdFromToken(string tokenId)
{
if (tokenId == null)
{
return(null);
}
if (tokenId.IndexOf('-') >= 0)
{
// retrieve the account id
string firstValue = tokenId.Substring(0, tokenId.IndexOf('-'));
// remove the first value from the token
tokenId = tokenId.Substring(tokenId.IndexOf("-") + 1);
// verify that the first value (account id) is not a number; that would mean that we're looking at a root token instead of an account token
if (firstValue.All(char.IsDigit))
{
return(new ExtractAccountIdAndServerIdFromTokenResult()
{
AccountId = null, AccountServerId = firstValue
});
}
// verify that the first value is a valid account name (i.e. does not contain invalid characters)
if (firstValue != null && FormattingHelper.ContainsOnlyAllowedIdentifierCharacters(firstValue) == false)
{
return(null);
}
if (tokenId.IndexOf('-') >= 0)
{
string secondValue = tokenId.Substring(0, tokenId.IndexOf('-'));
// verify that the second value is a number (i.e. the server id)
if (secondValue.All(char.IsDigit))
{
return(new ExtractAccountIdAndServerIdFromTokenResult {
AccountId = firstValue, AccountServerId = secondValue
});
}
}
}
// if we reach here, the token is not valid
return(null);
}