147 lines
5.6 KiB
C#
147 lines
5.6 KiB
C#
/*
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*
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* (c) Copyright Ascensio System Limited 2010-2018
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*
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* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
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* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
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* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
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*
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* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
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*
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* You can contact Ascensio System SIA by email at sales@onlyoffice.com
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*
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* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
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* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
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*
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* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
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* relevant author attributions when distributing the software. If the display of the logo in its graphic
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* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
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* in every copy of the program you distribute.
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* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
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*
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*/
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Net;
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using System.Threading.Tasks;
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using ASC.Common.Web;
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using Microsoft.AspNetCore.Builder;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Routing;
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namespace ASC.Data.Storage.DiscStorage
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{
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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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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 = Path.Combine(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 = Path.Combine(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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} |