119 lines
4.5 KiB
C#
119 lines
4.5 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 Constants = ASC.Core.Configuration.Constants;
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namespace ASC.Core.Security.Authorizing;
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[Scope]
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class PermissionResolver : IPermissionResolver
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{
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private readonly AzManager _azManager;
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public PermissionResolver(AzManager azManager)
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{
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_azManager = azManager ?? throw new ArgumentNullException(nameof(azManager));
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}
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public bool Check(ISubject subject, params IAction[] actions)
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{
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return Check(subject, null, null, actions);
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}
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public bool Check(ISubject subject, ISecurityObjectId objectId, ISecurityObjectProvider securityObjProvider, params IAction[] actions)
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{
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var denyActions = GetDenyActions(subject, actions, objectId, securityObjProvider);
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return denyActions.Length == 0;
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}
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public void Demand(ISubject subject, params IAction[] actions)
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{
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Demand(subject, null, null, actions);
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}
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public void Demand(ISubject subject, ISecurityObjectId objectId, ISecurityObjectProvider securityObjProvider, params IAction[] actions)
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{
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var denyActions = GetDenyActions(subject, actions, objectId, securityObjProvider);
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if (0 < denyActions.Length)
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{
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throw new AuthorizingException(
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subject,
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Array.ConvertAll(denyActions, r => r._targetAction),
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Array.ConvertAll(denyActions, r => r._denySubject),
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Array.ConvertAll(denyActions, r => r._denyAction));
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}
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}
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private DenyResult[] GetDenyActions(ISubject subject, IAction[] actions, ISecurityObjectId objectId, ISecurityObjectProvider securityObjProvider)
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{
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var denyActions = new List<DenyResult>();
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if (actions == null)
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{
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actions = Array.Empty<IAction>();
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}
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if (subject == null)
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{
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denyActions = actions.Select(a => new DenyResult(a, null, null)).ToList();
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}
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else if (subject is ISystemAccount && subject.ID == Constants.CoreSystem.ID)
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{
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// allow all
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}
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else
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{
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ISubject denySubject = null;
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IAction denyAction = null;
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foreach (var action in actions)
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{
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var allow = _azManager.CheckPermission(subject, action, objectId, securityObjProvider, out denySubject, out denyAction);
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if (!allow)
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{
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denyActions.Add(new DenyResult(action, denySubject, denyAction));
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break;
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}
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}
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}
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return denyActions.ToArray();
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}
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private class DenyResult
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{
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public readonly IAction _targetAction;
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public readonly ISubject _denySubject;
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public readonly IAction _denyAction;
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public DenyResult(IAction targetAction, ISubject denySubject, IAction denyAction)
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{
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_targetAction = targetAction;
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_denySubject = denySubject;
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_denyAction = denyAction;
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}
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}
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}
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