private bool SaveSiteInfoToFile(SiteInfo siteInfo, bool overwrite)
        {
            if (siteInfo == null)
            {
                return(false);
            }

            if (!SiteInfo.IsValidDomain(siteInfo.Domain))
            {
                return(false);
            }

            string fileName = GetFullSiteInfoFileName(siteInfo.Domain);

            if (!overwrite && File.Exists(fileName))
            {
                return(false);
            }

            int retryCount = 3;

            do
            {
                try
                {
                    using (var stream = new FileStream(fileName, FileMode.Create, FileAccess.Write, FileShare.None))
                    {
                        using (var writer = new StreamWriter(stream))
                        {
                            writer.Write(siteInfo.SerializeToJson());
                        }
                    }

                    return(true);
                }
                catch (IOException)
                {
                    retryCount--;

                    if (retryCount == 0)
                    {
                        return(false);
                    }

                    Thread.Sleep(2);
                }
                catch
                {
                    return(false);
                }
            }while (retryCount > 0);

            return(true);
        }