143 lines
5.8 KiB
C#
143 lines
5.8 KiB
C#
/*
|
|
*
|
|
* (c) Copyright Ascensio System Limited 2010-2018
|
|
*
|
|
* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
|
|
* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
|
|
* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
|
|
* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
|
|
*
|
|
* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
|
|
* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
|
|
*
|
|
* You can contact Ascensio System SIA by email at sales@onlyoffice.com
|
|
*
|
|
* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
|
|
* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
|
|
*
|
|
* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
|
|
* relevant author attributions when distributing the software. If the display of the logo in its graphic
|
|
* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
|
|
* in every copy of the program you distribute.
|
|
* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
|
|
*
|
|
*/
|
|
|
|
|
|
using System;
|
|
using System.Linq;
|
|
using System.Net;
|
|
using System.Web;
|
|
|
|
using ASC.Common;
|
|
using ASC.Common.Logging;
|
|
using ASC.Core;
|
|
using ASC.Core.Common.Settings;
|
|
|
|
using Microsoft.AspNetCore.Http;
|
|
using Microsoft.AspNetCore.Http.Extensions;
|
|
using Microsoft.Extensions.Configuration;
|
|
using Microsoft.Extensions.Options;
|
|
|
|
namespace ASC.IPSecurity
|
|
{
|
|
[Scope]
|
|
public class IPSecurity
|
|
{
|
|
private readonly ILog Log;
|
|
|
|
public bool IpSecurityEnabled { get; }
|
|
|
|
private IHttpContextAccessor HttpContextAccessor { get; }
|
|
private AuthContext AuthContext { get; }
|
|
private TenantManager TenantManager { get; }
|
|
private IPRestrictionsService IPRestrictionsService { get; }
|
|
private SettingsManager SettingsManager { get; }
|
|
|
|
private readonly string CurrentIpForTest;
|
|
|
|
public IPSecurity(
|
|
IConfiguration configuration,
|
|
IHttpContextAccessor httpContextAccessor,
|
|
AuthContext authContext,
|
|
TenantManager tenantManager,
|
|
IPRestrictionsService iPRestrictionsService,
|
|
SettingsManager settingsManager,
|
|
IOptionsMonitor<ILog> options)
|
|
{
|
|
Log = options.Get("ASC.IPSecurity");
|
|
HttpContextAccessor = httpContextAccessor;
|
|
AuthContext = authContext;
|
|
TenantManager = tenantManager;
|
|
IPRestrictionsService = iPRestrictionsService;
|
|
SettingsManager = settingsManager;
|
|
CurrentIpForTest = configuration["ipsecurity:test"];
|
|
var hideSettings = (configuration["web:hide-settings"] ?? "").Split(new[] { ',', ';', ' ' });
|
|
IpSecurityEnabled = !hideSettings.Contains("IpSecurity", StringComparer.CurrentCultureIgnoreCase);
|
|
}
|
|
|
|
public bool Verify()
|
|
{
|
|
var tenant = TenantManager.GetCurrentTenant();
|
|
var settings = SettingsManager.Load<IPRestrictionsSettings>();
|
|
|
|
if (!IpSecurityEnabled) return true;
|
|
|
|
if (HttpContextAccessor?.HttpContext == null) return true;
|
|
|
|
if (tenant == null || AuthContext.CurrentAccount.ID == tenant.OwnerId) return true;
|
|
|
|
string requestIps = null;
|
|
try
|
|
{
|
|
var restrictions = IPRestrictionsService.Get(tenant.TenantId).ToList();
|
|
|
|
if (restrictions.Count == 0) return true;
|
|
|
|
if (string.IsNullOrWhiteSpace(requestIps = CurrentIpForTest))
|
|
{
|
|
var request = HttpContextAccessor.HttpContext.Request;
|
|
requestIps = request.Headers["X-Forwarded-For"].FirstOrDefault() ?? request.GetUserHostAddress();
|
|
}
|
|
|
|
var ips = string.IsNullOrWhiteSpace(requestIps)
|
|
? Array.Empty<string>()
|
|
: requestIps.Split(new[] { ",", " " }, StringSplitOptions.RemoveEmptyEntries);
|
|
|
|
if (ips.Any(requestIp => restrictions.Any(restriction => MatchIPs(GetIpWithoutPort(requestIp), restriction.Ip))))
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
Log.ErrorFormat("Can't verify request with IP-address: {0}. Tenant: {1}. Error: {2} ", requestIps ?? "", tenant, ex);
|
|
return false;
|
|
}
|
|
|
|
Log.InfoFormat("Restricted from IP-address: {0}. Tenant: {1}. Request to: {2}", requestIps ?? "", tenant, HttpContextAccessor.HttpContext.Request.GetDisplayUrl());
|
|
return false;
|
|
}
|
|
|
|
private static bool MatchIPs(string requestIp, string restrictionIp)
|
|
{
|
|
var dividerIdx = restrictionIp.IndexOf('-');
|
|
if (restrictionIp.IndexOf('-') > 0)
|
|
{
|
|
var lower = IPAddress.Parse(restrictionIp.Substring(0, dividerIdx).Trim());
|
|
var upper = IPAddress.Parse(restrictionIp.Substring(dividerIdx + 1).Trim());
|
|
|
|
var range = new IPAddressRange(lower, upper);
|
|
return range.IsInRange(IPAddress.Parse(requestIp));
|
|
}
|
|
|
|
return requestIp == restrictionIp;
|
|
}
|
|
|
|
private static string GetIpWithoutPort(string ip)
|
|
{
|
|
var portIdx = ip.IndexOf(':');
|
|
return portIdx > 0 ? ip.Substring(0, portIdx) : ip;
|
|
}
|
|
}
|
|
} |