72 lines
3.4 KiB
C#
72 lines
3.4 KiB
C#
using System;
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using System.Globalization;
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using System.Linq;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Builder;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Localization;
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using Microsoft.Extensions.Primitives;
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using Umbraco.Cms.Core.Routing;
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using Umbraco.Cms.Web.Common.Routing;
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namespace Umbraco.Cms.Web.Common.Localization
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{
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/// <summary>
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/// Sets the request culture to the culture of the <see cref="IPublishedRequest"/> if one is found in the request
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/// </summary>
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public class UmbracoPublishedContentCultureProvider : RequestCultureProvider
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{
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private readonly RequestLocalizationOptions _localizationOptions;
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private readonly object _locker = new object();
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/// <summary>
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/// Initializes a new instance of the <see cref="UmbracoPublishedContentCultureProvider"/> class.
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/// </summary>
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public UmbracoPublishedContentCultureProvider(RequestLocalizationOptions localizationOptions) => _localizationOptions = localizationOptions;
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/// <inheritdoc/>
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public override Task<ProviderCultureResult> DetermineProviderCultureResult(HttpContext httpContext)
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{
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UmbracoRouteValues routeValues = httpContext.Features.Get<UmbracoRouteValues>();
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if (routeValues != null)
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{
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string culture = routeValues.PublishedRequest?.Culture;
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if (culture != null)
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{
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lock (_locker)
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{
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// We need to dynamically change the supported cultures since we won't ever know what languages are used since
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// they are dynamic within Umbraco. We have to handle this for both UI and Region cultures, in case people run different region and UI languages
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// This code to check existence is borrowed from aspnetcore to avoid creating a CultureInfo
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// https://github.com/dotnet/aspnetcore/blob/b795ac3546eb3e2f47a01a64feb3020794ca33bb/src/Middleware/Localization/src/RequestLocalizationMiddleware.cs#L165
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CultureInfo existingCulture = _localizationOptions.SupportedCultures.FirstOrDefault(supportedCulture =>
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StringSegment.Equals(supportedCulture.Name, culture, StringComparison.OrdinalIgnoreCase));
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if (existingCulture == null)
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{
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// add this as a supporting culture
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var ci = CultureInfo.GetCultureInfo(culture);
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_localizationOptions.SupportedCultures.Add(ci);
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}
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CultureInfo existingUICulture = _localizationOptions.SupportedUICultures.FirstOrDefault(supportedCulture =>
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StringSegment.Equals(supportedCulture.Name, culture, StringComparison.OrdinalIgnoreCase));
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if (existingUICulture == null)
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{
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// add this as a supporting culture
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var ci = CultureInfo.GetCultureInfo(culture);
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_localizationOptions.SupportedUICultures.Add(ci);
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}
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}
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return Task.FromResult(new ProviderCultureResult(culture));
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}
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}
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return NullProviderCultureResult;
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}
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}
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}
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