137 lines
5.2 KiB
C#
137 lines
5.2 KiB
C#
// (c) Copyright Ascensio System SIA 2010-2022
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//
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// This program is a free software product.
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// You can redistribute it and/or modify it under the terms
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// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
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// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
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// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
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// any third-party rights.
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//
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// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
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// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, see
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// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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//
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// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
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//
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// The interactive user interfaces in modified source and object code versions of the Program must
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// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
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//
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// Pursuant to Section 7(b) of the License you must retain the original Product logo when
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// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
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// trademark law for use of our trademarks.
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//
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// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
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// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
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// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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namespace ASC.Data.Storage.DiscStorage;
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public class DiscDataHandler
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{
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private readonly string _physPath;
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private readonly bool _checkAuth;
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public DiscDataHandler(string physPath, bool checkAuth = true)
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{
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_physPath = physPath;
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_checkAuth = checkAuth;
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}
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public async Task Invoke(HttpContext context)
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{
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//TODO
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//if (_checkAuth && !Core.SecurityContext.IsAuthenticated)
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//{
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// context.Response.StatusCode = (int)HttpStatusCode.Forbidden;
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// return;
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//}
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var path = CombinePath(_physPath, context);
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if (File.Exists(path))
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{
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var lastwrite = File.GetLastWriteTime(path);
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var etag = '"' + lastwrite.Ticks.ToString("X8", CultureInfo.InvariantCulture) + '"';
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var notmodified = context.Request.Headers["If-None-Match"] == etag ||
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context.Request.Headers["If-Modified-Since"] == lastwrite.ToString("R");
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if (notmodified)
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{
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context.Response.StatusCode = (int)HttpStatusCode.NotModified;
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}
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else
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{
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if (File.Exists(path + ".gz"))
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{
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await context.Response.SendFileAsync(path + ".gz");
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context.Response.Headers["Content-Encoding"] = "gzip";
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}
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else
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{
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await context.Response.SendFileAsync(path);
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}
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context.Response.ContentType = MimeMapping.GetMimeMapping(path);
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//TODO
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//context.Response.Cache.SetVaryByCustom("*");
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//context.Response.Cache.SetAllowResponseInBrowserHistory(true);
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//context.Response.Cache.SetExpires(DateTime.UtcNow.AddDays(1));
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//context.Response.Cache.SetLastModified(lastwrite);
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//context.Response.Cache.SetETag(etag);
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//context.Response.Cache.SetCacheability(HttpCacheability.Public);
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}
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}
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else
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{
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context.Response.StatusCode = (int)HttpStatusCode.NotFound;
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}
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}
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private static string CombinePath(string physPath, HttpContext requestContext)
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{
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var pathInfo = GetRouteValue("pathInfo").Replace('/', Path.DirectorySeparatorChar);
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var path = CrossPlatform.PathCombine(physPath, pathInfo);
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var tenant = GetRouteValue("0");
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if (string.IsNullOrEmpty(tenant))
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{
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tenant = CrossPlatform.PathCombine(GetRouteValue("t1"), GetRouteValue("t2"), GetRouteValue("t3"));
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}
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path = path.Replace("{0}", tenant);
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return path;
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string GetRouteValue(string name)
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{
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return (requestContext.GetRouteValue(name) ?? "").ToString();
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}
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}
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}
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public static class DiscDataHandlerExtensions
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{
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public static IEndpointRouteBuilder RegisterDiscDataHandler(this IEndpointRouteBuilder builder, string virtPath, string physPath, bool publicRoute = false)
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{
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if (virtPath != "/")
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{
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var handler = new DiscDataHandler(physPath, !publicRoute);
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var url = virtPath + "{*pathInfo}";
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if (!builder.DataSources.Any(r => r.Endpoints.Any(e => e.DisplayName == url)))
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{
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builder.Map(url, handler.Invoke);
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var newUrl = url.Replace("{0}", "{t1}/{t2}/{t3}");
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if (newUrl != url)
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{
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builder.Map(url, handler.Invoke);
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}
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}
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}
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return builder;
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}
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}
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