146 lines
5.4 KiB
C#
146 lines
5.4 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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using ValidationResult = ASC.Security.Cryptography.EmailValidationKeyProvider.ValidationResult;
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namespace ASC.Api.Core.Security;
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[Scope]
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public class DocSpaceLinkHelper
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{
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private readonly IDbContextFactory<MessagesContext> _dbContextFactory;
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private readonly IHttpContextAccessor _httpContextAccessor;
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private readonly MessageService _messageService;
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private readonly MessageTarget _messageTarget;
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private readonly Signature _signature;
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private readonly EmailValidationKeyProvider _emailValidationKeyProvider;
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public TimeSpan ExpirationInterval => _emailValidationKeyProvider.ValidEmailKeyInterval;
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public TimeSpan ExpirationVisitInterval => _emailValidationKeyProvider.ValidVisitLinkInterval;
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public DocSpaceLinkHelper(
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IHttpContextAccessor httpContextAccessor,
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MessageTarget messageTarget,
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MessageService messageService,
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Signature signature,
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IDbContextFactory<MessagesContext> dbContextFactory,
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EmailValidationKeyProvider emailValidationKeyProvider)
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{
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_httpContextAccessor = httpContextAccessor;
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_messageTarget = messageTarget;
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_messageService = messageService;
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_dbContextFactory = dbContextFactory;
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_signature = signature;
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_emailValidationKeyProvider = emailValidationKeyProvider;
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}
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public string MakeKey(Guid linkId)
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{
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return _signature.Create(linkId);
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}
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public string MakeKey(string email, EmployeeType employeeType)
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{
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return email + ConfirmType.LinkInvite.ToStringFast() + employeeType.ToStringFast();
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}
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public Guid Parse(string key)
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{
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return _signature.Read<Guid>(key);
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}
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public ValidationResult Validate(string key, string email, EmployeeType employeeType)
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{
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return string.IsNullOrEmpty(email) ? ValidateRoomExternalLink(key) : ValidateEmailLink(email, key, employeeType);
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}
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public ValidationResult ValidateEmailLink(string email, string key, EmployeeType employeeType)
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{
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var result = _emailValidationKeyProvider.ValidateEmailKey(MakeKey(email, employeeType), key, ExpirationInterval);
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if (result == ValidationResult.Ok)
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{
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var canUsed = CanUsed(email, key, ExpirationVisitInterval);
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if (!canUsed)
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{
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return ValidationResult.Expired;
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}
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}
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return result;
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}
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public ValidationResult ValidateRoomExternalLink(string key)
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{
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var payload = Parse(key);
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return payload == default ? ValidationResult.Invalid : ValidationResult.Ok;
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}
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public ValidationResult ValidateExtarnalLink(string key, EmployeeType employeeType)
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{
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return _emailValidationKeyProvider.ValidateEmailKey(ConfirmType.LinkInvite.ToStringFast() + (int)employeeType, key);
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}
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private bool CanUsed(string email, string key, TimeSpan interval)
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{
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var message = GetLinkInfo(email, key);
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if (message == null)
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{
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SaveVisitLinkInfo(email, key);
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return true;
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}
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return message.Date + interval > DateTime.UtcNow;
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}
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private AuditEvent GetLinkInfo(string email, string key)
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{
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using var context = _dbContextFactory.CreateDbContext();
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var target = _messageTarget.Create(email);
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var description = JsonConvert.SerializeObject(new[] { key },
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new JsonSerializerSettings
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{
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DateTimeZoneHandling = DateTimeZoneHandling.Utc
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});
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var message = context.AuditEvents.Where(a => a.Target == target.ToString() &&
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a.DescriptionRaw == description).FirstOrDefault();
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return message;
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}
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private void SaveVisitLinkInfo(string email, string key)
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{
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var headers = _httpContextAccessor?.HttpContext?.Request?.Headers;
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var target = _messageTarget.Create(email);
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_messageService.Send(headers, MessageAction.RoomInviteLinkUsed, target, key);
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}
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} |