| | | 1 | | using System; |
| | | 2 | | using System.Threading.Tasks; |
| | | 3 | | using MediaBrowser.Common.Net; |
| | | 4 | | using MediaBrowser.Controller.Configuration; |
| | | 5 | | using Microsoft.AspNetCore.Http; |
| | | 6 | | using Microsoft.Extensions.Configuration; |
| | | 7 | | using Microsoft.Extensions.Logging; |
| | | 8 | | using static MediaBrowser.Controller.Extensions.ConfigurationExtensions; |
| | | 9 | | |
| | | 10 | | namespace Jellyfin.Api.Middleware; |
| | | 11 | | |
| | | 12 | | /// <summary> |
| | | 13 | | /// Redirect requests without baseurl prefix to the baseurl prefixed URL. |
| | | 14 | | /// </summary> |
| | | 15 | | public class BaseUrlRedirectionMiddleware |
| | | 16 | | { |
| | | 17 | | private readonly RequestDelegate _next; |
| | | 18 | | private readonly ILogger<BaseUrlRedirectionMiddleware> _logger; |
| | | 19 | | private readonly IConfiguration _configuration; |
| | | 20 | | |
| | | 21 | | /// <summary> |
| | | 22 | | /// Initializes a new instance of the <see cref="BaseUrlRedirectionMiddleware"/> class. |
| | | 23 | | /// </summary> |
| | | 24 | | /// <param name="next">The next delegate in the pipeline.</param> |
| | | 25 | | /// <param name="logger">The logger.</param> |
| | | 26 | | /// <param name="configuration">The application configuration.</param> |
| | | 27 | | public BaseUrlRedirectionMiddleware( |
| | | 28 | | RequestDelegate next, |
| | | 29 | | ILogger<BaseUrlRedirectionMiddleware> logger, |
| | | 30 | | IConfiguration configuration) |
| | | 31 | | { |
| | 22 | 32 | | _next = next; |
| | 22 | 33 | | _logger = logger; |
| | 22 | 34 | | _configuration = configuration; |
| | 22 | 35 | | } |
| | | 36 | | |
| | | 37 | | /// <summary> |
| | | 38 | | /// Executes the middleware action. |
| | | 39 | | /// </summary> |
| | | 40 | | /// <param name="httpContext">The current HTTP context.</param> |
| | | 41 | | /// <param name="serverConfigurationManager">The server configuration manager.</param> |
| | | 42 | | /// <returns>The async task.</returns> |
| | | 43 | | public async Task Invoke(HttpContext httpContext, IServerConfigurationManager serverConfigurationManager) |
| | | 44 | | { |
| | | 45 | | var localPath = httpContext.Request.Path.ToString(); |
| | | 46 | | var baseUrlPrefix = serverConfigurationManager.GetNetworkConfiguration().BaseUrl; |
| | | 47 | | |
| | | 48 | | if (string.IsNullOrEmpty(localPath) |
| | | 49 | | || string.Equals(localPath, baseUrlPrefix, StringComparison.OrdinalIgnoreCase) |
| | | 50 | | || string.Equals(localPath, baseUrlPrefix + "/", StringComparison.OrdinalIgnoreCase) |
| | | 51 | | || !localPath.StartsWith(baseUrlPrefix, StringComparison.OrdinalIgnoreCase) |
| | | 52 | | ) |
| | | 53 | | { |
| | | 54 | | // Redirect health endpoint |
| | | 55 | | if (string.Equals(localPath, "/health", StringComparison.OrdinalIgnoreCase) |
| | | 56 | | || string.Equals(localPath, "/health/", StringComparison.OrdinalIgnoreCase)) |
| | | 57 | | { |
| | | 58 | | _logger.LogDebug("Redirecting /health check"); |
| | | 59 | | httpContext.Response.Redirect(baseUrlPrefix + "/health"); |
| | | 60 | | return; |
| | | 61 | | } |
| | | 62 | | |
| | | 63 | | // Always redirect back to the default path if the base prefix is invalid or missing |
| | | 64 | | _logger.LogDebug("Normalizing an URL at {LocalPath}", localPath); |
| | | 65 | | |
| | | 66 | | var port = httpContext.Request.Host.Port ?? -1; |
| | | 67 | | var uri = new UriBuilder(httpContext.Request.Scheme, httpContext.Request.Host.Host, port, localPath).Uri; |
| | | 68 | | var redirectUri = new UriBuilder(httpContext.Request.Scheme, httpContext.Request.Host.Host, port, baseUrlPre |
| | | 69 | | var target = uri.MakeRelativeUri(redirectUri).ToString(); |
| | | 70 | | _logger.LogDebug("Redirecting to {Target}", target); |
| | | 71 | | |
| | | 72 | | httpContext.Response.Redirect(target); |
| | | 73 | | return; |
| | | 74 | | } |
| | | 75 | | |
| | | 76 | | await _next(httpContext).ConfigureAwait(false); |
| | | 77 | | } |
| | | 78 | | } |