/// <summary>
/// Gets the institution code. This returns null IF HTTP context or request or session is not available.
/// If we return null, then requestAvailable is false. If central, we return the default code
/// </summary>
/// <returns></returns>
/// <exception cref="GeneralException"></exception>
public virtual string GetInstitutionCode(out bool requestAvailable)
{
if (IsRequestAvailable(_httpContext))
{
string core = Utilities.INST_DEFAULT_CODE;
requestAvailable = true;
string instCode;
var httpSession = _httpContext.Session;
var routeData = _httpContext.Request.RequestContext?.RouteData?.Values;
if (routeData == null || routeData.Count < 2 || httpSession == null)
{
// This can happen when we invoke this before MVC is activated.
#region Pre-MVC
if (routeData != null && routeData.ContainsKey("institution"))
{
return(Convert.ToString(routeData["institution"]));
}
var url = GetThisPageUrl(false, false).ToLowerInvariant();
var siteUrl = ConfigurationHelper.GetSiteUrl().ToLowerInvariant();
url = url.Replace(siteUrl, string.Empty);
if (string.IsNullOrWhiteSpace(url))
{
return(core);
}
var segments = url.Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
switch (segments.Length)
{
// This code HEAVILY relies on the url templates setup in
// MultiTenancyFramework.Mvc.InstitutionRouteConfig.RegisterRoutes
case 1:
if (new[] { "home", "error" }.Contains(segments[0]))
{
instCode = core;
}
else
{
instCode = segments[0];
}
break;
case 2:
if (new[] { "home", "error" }.Contains(segments[1]))
{
instCode = segments[0];
}
else
{
instCode = core;
}
break;
case 3:
int id;
if (int.TryParse(segments[2], out id))
{
instCode = core;
}
else
{
instCode = segments[0];
}
break;
case 4:
default:
instCode = segments[0];
break;
}
#endregion
}
else
{
#region MVC-Specific
instCode = Convert.ToString(routeData["institution"]) ?? core;
if (string.IsNullOrWhiteSpace(instCode) || instCode.Equals(core, StringComparison.OrdinalIgnoreCase))
{
return(core);
}
// The request may be from a non-existent institution, so we check if we have it in session
if (httpSession != null && httpSession[SS_CODE] != null)
{
var codeInSession = Convert.ToString(httpSession[SS_CODE]); //ClaimsPrincipal.Current.FindFirst("ic")?.Value; //
if (!instCode.Equals(codeInSession, StringComparison.OrdinalIgnoreCase))
{
var error = $"codeInSession ({codeInSession}) != instCode ({instCode}).";
var ex = new LogOutUserException(error);
throw ex;
}
return(codeInSession);
}
#endregion
}
// if it's a tenant
if (!string.IsNullOrWhiteSpace(instCode) && !instCode.Equals(core, StringComparison.OrdinalIgnoreCase))
{
var query = new GetInstitutionByCodeQuery
{
Code = instCode,
};
var inst = Utilities.QueryProcessor.Process(query);
if (inst == null)
{
if (IsStaticResource())
{
instCode = core;
}
else
{
throw new GeneralException($"The code: {instCode} does not belong to any institution on our system.", ExceptionType.UnidentifiedInstitutionCode);
}
}
}
_httpContext.Request.RequestContext.RouteData.Values["institution"] = instCode;
if (_httpContext.Session != null)
{
_httpContext.Session[SS_CODE] = instCode;
}
return(instCode); // return inst.Code;
}
requestAvailable = false;
return(null);
}
/// <summary>
/// Gets institution host location
/// </summary>
/// <param name="useSsl">Use SSL</param>
/// <returns>Institution host location</returns>
public virtual string GetInstitutionHost(bool useSsl)
{
return(ConfigurationHelper.GetSiteUrl());
}