namespace MyApp.Web.Models
{
    using System.Configuration;

    public static class EncryptConnection
    {
        public static void EncryptConnectionString(bool encrypt = false)
        {
            // Open the configuration file and retrieve the connectionStrings section.
            var configFile = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
            var configSection = configFile.GetSection("connectionStrings") as ConnectionStringsSection;

            if (configSection == null) return;
            if ((configSection.ElementInformation.IsLocked) || 
                (configSection.SectionInformation.IsLocked)) return;

            // encrypt is true and section is unprotected, so encrypt
            if (encrypt && !configSection.SectionInformation.IsProtected)
                configSection.SectionInformation.ProtectSection("DataProtectionConfigurationProvider");

            // encrypt is false and section is protected, so unencrypt
            if (!encrypt && configSection.SectionInformation.IsProtected)
                configSection.SectionInformation.UnprotectSection();

            // re-save the configuration file section
            configSection.SectionInformation.ForceSave = true;

            // Save the current configuration.
            configFile.Save();
        }
    }
}