//validates an auth code
public static bool IsGoodAuthCode(string authCode)
{
Contract.Requires(!string.IsNullOrWhiteSpace(authCode));
var log = ClassLogger.Create(typeof(AuthorizationCode));
var dblog = DebugOnlyLogger.Create(log);
try
{
var plain = DecryptCode(authCode);
dblog.InfoFormat(DecryptedAuthCodeFormat, plain);
var parts = plain.Split(Separator);
if (parts.Length != 2)
{
log.ErrorFormat(AuthCodeFailedFormat, plain);
return(false);
}
var goodGuid = GuidEncoder.Decode(parts[0]);
if (Guid.Empty != goodGuid && parts[1].Contains(_magic))
{
dblog.InfoFormat(AuthCodeAuthorizedFormat, plain);
return(true);
}
//when not in right format
log.ErrorFormat(AuthCodeFailedFormat, plain);
return(false);
}
catch (Exception exception)
{
log.Error("IsGoodAuthCode", exception);
log.ErrorFormat(AuthCodeFailedFormat, authCode);
return(false);
}
}
public static string GenerateCode()
{
var plainText = string.Format("{0}|{1}", GuidEncoder.Encode(Guid.NewGuid()), _magic);
return(GenerateCode(plainText));
}