public static IApplicationBuilder UseDefaultCultureRewrite(this IApplicationBuilder app, string routeConvention)
{
LocalizationPipeline.RouteConvention = routeConvention;
int cultureRouteKeyIndex = LocalizationOptions.GetCultureRouteKeyIndex();
var routeConvSegs = LocalizationPipeline.RouteConvention.Split('/');
var rewrOpts = new RewriteOptions();
rewrOpts
.Add(context =>
{
if (cultureRouteKeyIndex <= -1)
{
return;
}
string noLangRequestPathPattern = "";
// Generate the empty language request
var lst = routeConvSegs.ToList();
lst.RemoveAt(cultureRouteKeyIndex);
noLangRequestPathPattern = "^(/" + string.Join('/', lst) + "/.*)$";
string requestStr = context.HttpContext.Request.Path.Value;
// If it's request without lang
if (Regex.IsMatch(requestStr, noLangRequestPathPattern))
{
// Generate one with the default lang
var reqSegs = requestStr.Split('/').ToList();
if (string.IsNullOrEmpty(reqSegs[0]))
{
reqSegs = reqSegs.Skip(1).ToList();
}
reqSegs.Insert(cultureRouteKeyIndex, LocalizationOptions.DefaultCulture);
context.HttpContext.Request.Path = "/" + string.Join("/", reqSegs);
}
});
app.UseRewriter(rewrOpts);
return(app);
}
public static IApplicationBuilder UseTwoLettersCultureRewrite(this IApplicationBuilder app, string routeConvention)
{
LocalizationPipeline.RouteConvention = routeConvention;
int cultureRouteKeyIndex = LocalizationOptions.GetCultureRouteKeyIndex();
var rewOpts = new RewriteOptions();
rewOpts
.Add(context =>
{
if (cultureRouteKeyIndex <= -1)
{
return;
}
var requestSegments = context.HttpContext.Request.Path.Value.Split('/');
if (string.IsNullOrEmpty(requestSegments[0]))
{
requestSegments = requestSegments.Skip(1).ToArray();
}
// if lang exists just check if it's valid one
if (cultureRouteKeyIndex <= requestSegments.Length - 1)
{
var reqLang = requestSegments[cultureRouteKeyIndex];
// Is supported language
var lang = LocalizationOptions.SupportedCultures.FirstOrDefault(
a => a.TwoLetterISOLanguageName.Equals(
reqLang, StringComparison.InvariantCultureIgnoreCase));
if (lang != null)
{
requestSegments[cultureRouteKeyIndex] = lang.Name;
context.HttpContext.Request.Path = "/" + string.Join("/", requestSegments);
}
}
});
app.UseRewriter(rewOpts);
return(app);
}
