public CachingProxy()

in CachingProxy/src/CachingProxy.cs [49:99]
42 lines of code
6 McCabe index (conditional complexity)

    public CachingProxy(RequestDelegate next, IWebHostEnvironment hostingEnv, CachingProxyMetrics metrics,
      ILoggerFactory loggerFactory, IOptions<CachingProxyConfig> config, ProxyHttpClient httpClient, ResponseCache responseCache)
    {
      myLogger = loggerFactory.CreateLogger<CachingProxy>();
      myLogger.LogInformation("Initialising. Config:\n{CachingProxyConfig}", config.Value);

      myNext = next;
      myMetrics = metrics;
      myHttpClient = httpClient;
      myResponseCache = responseCache;

      myMinimumFreeDiskSpaceMb = config.Value.MinimumFreeDiskSpaceMb;
      myLocalCachePath = config.Value.LocalCachePath;
      if (myLocalCachePath == null)
        throw new ArgumentNullException(nameof(myLocalCachePath), "LocalCachePath could not be null");
      if (!Directory.Exists(myLocalCachePath))
        throw new ArgumentException("LocalCachePath doesn't exist: " + myLocalCachePath);

      myRemoteServers = new RemoteServers(config.Value.Prefixes.ToList(), config.Value.ContentTypeValidationPrefixes.ToList());

      myContentTypeProvider = new FileExtensionContentTypeProvider();
      myCacheFileProvider = new CacheFileProvider(myLocalCachePath);

      var staticFileOptions = new StaticFileOptions
      {
        FileProvider = myCacheFileProvider,
        ServeUnknownFileTypes = true,
        HttpsCompression = HttpsCompressionMode.DoNotCompress,
        ContentTypeProvider = myContentTypeProvider,
        OnPrepareResponse = ctx =>
        {
          var contentEncoding = myCacheFileProvider.GetContentEncoding(ctx.File);
          if (contentEncoding != null)
            ctx.Context.Response.Headers.ContentEncoding = contentEncoding;

          SetStatusHeader(ctx.Context, CachingProxyStatus.HIT);
          AddEternalCachingControl(ctx.Context);
        }
      };

      myStaticFileMiddleware =
        new StaticFileMiddleware(next, hostingEnv, Options.Create(staticFileOptions), loggerFactory);

      myBlacklistRegex = !string.IsNullOrWhiteSpace(config.Value.BlacklistUrlRegex)
        ? new Regex(config.Value.BlacklistUrlRegex, RegexOptions.Compiled)
        : null;

      myRedirectToRemoteUrlsRegex = !string.IsNullOrWhiteSpace(config.Value.RedirectToRemoteUrlsRegex)
        ? new Regex(config.Value.RedirectToRemoteUrlsRegex, RegexOptions.Compiled)
        : null;
    }