public void GetCulturesValueToSetFailTest()
{
var cultures = new AppSupportedCultures();
Assert.Equal("c=en-GB|uic=en", cultures.GetCulturesEncodedValue(null, null));
Assert.Equal("c=en-GB|uic=en", cultures.GetCulturesEncodedValue(null, "fr-CH")); //both parameters must be valid
Assert.Equal("c=en-GB|uic=en", cultures.GetCulturesEncodedValue("fr-CH", null)); //both parameters must be valid
}
public void GetCulturesValueToSetTest()
{
var cultures = new AppSupportedCultures();
Assert.Equal("c=fr-CH|uic=en-GB", cultures.GetCulturesEncodedValue("fr-CH", "en-GB"));
Assert.Equal("c=en-GB|uic=fr-CH", cultures.GetCulturesEncodedValue("en-GB", "fr-CH"));
Assert.Equal("c=fr-CH|uic=en-GB", cultures.GetCulturesEncodedValue("fr-CH", "en-GB"));
Assert.Equal("c=en-GB|uic=fr-CH", cultures.GetCulturesEncodedValue("en-GB", "fr-CH"));
Assert.Equal("culture=fr-CH&ui-culture=en-GB", cultures.GetCulturesEncodedValue("fr-CH", "en-GB", false));
Assert.Equal("culture=en-GB&ui-culture=fr-CH", cultures.GetCulturesEncodedValue("en-GB", "fr-CH", false));
}
//Create an extension method for the User that returns the Culture that the User has stored in his Profile
//public static string GetCulture(this ClaimsPrincipal claimsPrincipal)
//{
// if (claimsPrincipal == null)
// throw new ArgumentNullException(nameof(claimsPrincipal));
// return claimsPrincipal.FindFirstValue(Constants.ClaimTypes.Culture); //or Constants.ClaimTypes.locale - see https://openid.net/specs/openid-connect-core-1_0.html#StandardClaims
//}
public override async Task <ProviderCultureResult> DetermineProviderCultureResult(HttpContext httpContext)
{
if (httpContext == null)
{
throw new ArgumentNullException();
}
var updateCookie = true;
//var configuration = httpContext.RequestServices.GetService<IConfigurationRoot>(); //Configuration providers read configuration data from key-value pairs using a variety of configuration sources https://docs.microsoft.com/en-us/aspnet/core/fundamentals/configuration/?view=aspnetcore-3.1
var culture = AppSupportedCultures.DefaultTab; //configuration[CultureKey];
var uiCulture = AppSupportedCultures.DefaultUiTab; //configuration[UiCultureKey];
if (httpContext.User.Identity.IsAuthenticated)
{ //https://ml-software.ch/posts/writing-a-custom-request-culture-provider-in-asp-net-core-2-1
culture = AppSupportedCultures.DefaultTab; //GetCultureTabFromValue(httpContext.User.GetCulture());
uiCulture = AppSupportedCultures.DefaultUiTab; //GetUiCultureTabFromValue(httpContext.User.GetUiCulture());
}
else
{
if (Options != null)
{
foreach (var provider in Options.RequestCultureProviders) //0: this, 1: query string, 2: cookie, 3: Accept-Language header
{
var providerTypeName = provider.GetType().ToString();
if (providerTypeName.Equals(this.GetType().ToString()) == false)
{
var val = await provider.DetermineProviderCultureResult(httpContext);
if (val?.Cultures?.Count > 0)
{
culture = val.Cultures[0].ToString();
}
if (val?.UICultures?.Count > 0)
{
uiCulture = val.UICultures[0].ToString();
}
if (val?.Cultures?.Count > 0)
{
if (providerTypeName.Equals(CookieProviderTypeName))
{
updateCookie = false;
}
break;
}
}
}
}
}
var cookies = new MxCookies(httpContext.RequestServices.GetService <IHttpContextAccessor>());
if (_supportedCultures.IsSupported(culture) == false)
{
culture = _supportedCultures.GetNearestMatch(culture);
updateCookie = true;
}
if (_supportedCultures.IsSupported(uiCulture) == false)
{
uiCulture = _supportedCultures.GetNearestMatch(uiCulture, true);
updateCookie = true;
}
if (updateCookie)
{
cookies.SetValue(MxSupportedCultures.CookieName, _supportedCultures.GetCulturesEncodedValue(culture, uiCulture));
}
return(new ProviderCultureResult(culture, uiCulture));
}