126 lines
4.6 KiB
C#
126 lines
4.6 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;
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using System.Linq;
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using ASC.Common.Logging;
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using ASC.Core.Common.EF;
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using ASC.Core.Common.EF.Context;
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using Microsoft.Extensions.Options;
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namespace ASC.Geolocation
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{
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public class GeolocationHelper
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{
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public string Dbid { get; set; }
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public ILog Log { get; }
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public DbContext DbContext { get; }
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public GeolocationHelper(DbContextManager<DbContext> dbContext, IOptionsMonitor<ILog> option)
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{
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Log = option.CurrentValue;
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DbContext = dbContext.Get(Dbid);
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}
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public IPGeolocationInfo GetIPGeolocation(string ip)
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{
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try
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{
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var ipformatted = FormatIP(ip);
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var q = DbContext.DbipLocation
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.Where(r => r.IPStart.CompareTo(ipformatted) <= 0)
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.Where(r => ipformatted.CompareTo(r.IPEnd) <= 0)
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.OrderByDescending(r => r.IPStart)
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.Select(r => new IPGeolocationInfo
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{
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City = r.City,
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IPEnd = r.IPEnd,
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IPStart = r.IPStart,
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Key = r.Country,
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TimezoneOffset = r.TimezoneOffset,
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TimezoneName = r.TimezoneName
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})
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.FirstOrDefault();
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return q ?? IPGeolocationInfo.Default;
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}
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catch (Exception error)
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{
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Log.Error(error);
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}
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return IPGeolocationInfo.Default;
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}
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public IPGeolocationInfo GetIPGeolocationFromHttpContext(Microsoft.AspNetCore.Http.HttpContext context)
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{
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if (context != null && context.Request != null)
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{
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var ip = (string)(context.Request.HttpContext.Items["X-Forwarded-For"] ?? context.Request.HttpContext.Items["REMOTE_ADDR"]);
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if (!string.IsNullOrWhiteSpace(ip))
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{
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return GetIPGeolocation(ip);
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}
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}
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return IPGeolocationInfo.Default;
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}
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private static string FormatIP(string ip)
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{
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ip = (ip ?? "").Trim();
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if (ip.Contains('.'))
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{
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//ip v4
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if (ip.Length == 15)
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{
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return ip;
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}
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return string.Join(".", ip.Split(':')[0].Split('.').Select(s => ("00" + s).Substring(s.Length - 1)).ToArray());
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}
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else if (ip.Contains(':'))
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{
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//ip v6
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if (ip.Length == 39)
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{
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return ip;
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}
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var index = ip.IndexOf("::");
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if (0 <= index)
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{
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ip = ip.Insert(index + 2, new string(':', 8 - ip.Split(':').Length));
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}
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return string.Join(":", ip.Split(':').Select(s => ("0000" + s).Substring(s.Length)).ToArray());
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}
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else
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{
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throw new ArgumentException("Unknown ip " + ip);
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}
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}
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}
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} |