问如何拦截请求以获取用于站点本地化的原始URL？

EN

namespace SomeModule
{
    using System;
    using System.Globalization;
    using System.Linq;
    using System.Web;
    using Orchard.Localization.Services;

    public class CultureSelectorByHeader : ICultureSelector
    {
        private readonly ICultureManager cultureManager;

        public CultureSelectorByHeader(ICultureManager cultureManager)
        {
            this.cultureManager = cultureManager;
        }

        public CultureSelectorResult GetCulture(HttpContextBase context)
        {
            var acceptedLanguageHeader = context?.Request?.UserLanguages?.FirstOrDefault();
            if ( acceptedLanguageHeader == null )
                return null;

            var enabledCultures = this.cultureManager.ListCultures();
            var siteCulture = this.cultureManager.GetSiteCulture();

            // Select the specified culture if it's enabled.
            // Otherwise, or if it wasn't found, fall back to the default site culture.
            var culture = enabledCultures.Contains(acceptedLanguageHeader, StringComparer.InvariantCultureIgnoreCase)
                ? CultureInfo.CreateSpecificCulture(acceptedLanguageHeader).Name
                : CultureInfo.CreateSpecificCulture(siteCulture).Name;

            return new CultureSelectorResult { CultureName = culture, Priority = 0 };
        }
    }
}

private void SetWorkContextCulture(string cultureTwoLetterIsoCode)
{
    if ( !string.IsNullOrWhitespace(cultureTwoLetterIsoCode) )
    {
        try
        {
            var culture = CultureInfo.CreateSpecificCulture(cultureTwoLetterIsoCode);
            this.Services.WorkContext.CurrentCulture = culture.TwoLetterISOLanguageName;
        }
        catch ( CultureNotFoundException )
        {
            Debug.WriteLine("Couldn't change thread culture.");
        }
    }
}