94 lines
3.4 KiB
C#
94 lines
3.4 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;
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using System.Text.RegularExpressions;
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using ASC.Common;
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using ASC.Common.Caching;
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using Microsoft.AspNetCore.Http;
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using Microsoft.Extensions.Configuration;
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namespace ASC.Web.Core.Mobile
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{
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public class MobileDetector
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{
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private readonly Regex uaMobileRegex;
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private static readonly ICache cache = AscCache.Memory;
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private IHttpContextAccessor HttpContextAccessor { get; }
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public bool IsMobile()
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{
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return IsRequestMatchesMobile();
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}
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public MobileDetector(IHttpContextAccessor httpContextAccessor, IConfiguration configuration)
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{
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if (!string.IsNullOrEmpty(configuration["mobile:regex"]))
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{
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uaMobileRegex = new Regex(configuration["mobile:regex"], RegexOptions.IgnoreCase | RegexOptions.Singleline | RegexOptions.Compiled);
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}
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HttpContextAccessor = httpContextAccessor;
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}
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public bool IsRequestMatchesMobile()
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{
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bool? result = false;
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var ua = HttpContextAccessor.HttpContext.Request.Headers["User-Agent"].ToString();
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var regex = uaMobileRegex;
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if (!string.IsNullOrEmpty(ua) && regex != null)
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{
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var key = "mobileDetector/" + ua.GetHashCode();
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if (bool.TryParse(cache.Get<string>(key), out var fromCache))
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{
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result = fromCache;
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}
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else
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{
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cache.Insert(key, (result = regex.IsMatch(ua)).ToString(), TimeSpan.FromMinutes(10));
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}
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}
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return result.GetValueOrDefault();
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}
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}
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public static class MobileDetectorExtension
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{
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public static DIHelper AddMobileDetectorService(this DIHelper services)
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{
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services.TryAddScoped<MobileDetector>();
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return services;
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}
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}
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} |