156 lines
5.1 KiB
C#
156 lines
5.1 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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namespace ASC.ActiveDirectory.Novell.Extensions;
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[Singletone]
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public class NovellLdapEntryExtension
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{
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private readonly ILogger<NovellLdapEntryExtension> _logger;
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public NovellLdapEntryExtension(ILogger<NovellLdapEntryExtension> logger)
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{
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_logger = logger;
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}
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public object GetAttributeValue(LdapEntry ldapEntry, string attributeName, bool getBytes = false)
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{
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try
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{
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var attribute = ldapEntry.GetAttribute(attributeName);
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if (attribute == null)
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{
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return null;
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}
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if (!(string.Equals(attributeName, LdapConstants.ADSchemaAttributes.OBJECT_SID,
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StringComparison.OrdinalIgnoreCase) || getBytes))
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{
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return attribute.StringValue;
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}
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if (attribute.ByteValue == null)
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{
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return null;
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}
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var value = new byte[attribute.ByteValue.Length];
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Buffer.BlockCopy(attribute.ByteValue, 0, value, 0, attribute.ByteValue.Length);
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if (getBytes)
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{
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return value;
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}
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return DecodeSid(value);
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}
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catch (Exception)
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{
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return null;
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}
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}
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public string[] GetAttributeArrayValue(LdapEntry ldapEntry, string attributeName)
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{
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var attribute = ldapEntry.GetAttribute(attributeName);
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return attribute == null ? null : attribute.StringValueArray;
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}
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private string DecodeSid(byte[] sid)
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{
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var strSid = new StringBuilder("S-");
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// get version
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int revision = sid[0];
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strSid.Append(revision.ToString(CultureInfo.InvariantCulture));
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//next byte is the count of sub-authorities
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var countSubAuths = sid[1] & 0xFF;
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//get the authority
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long authority = 0;
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//String rid = "";
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for (var i = 2; i <= 7; i++)
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{
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authority |= ((long)sid[i]) << (8 * (5 - (i - 2)));
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}
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strSid.Append("-");
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strSid.Append(authority);
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//iterate all the sub-auths
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var offset = 8;
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const int size = 4; //4 bytes for each sub auth
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for (var j = 0; j < countSubAuths; j++)
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{
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long subAuthority = 0;
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for (var k = 0; k < size; k++)
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{
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subAuthority |= (long)(sid[offset + k] & 0xFF) << (8 * k);
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}
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strSid.Append("-");
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strSid.Append(subAuthority);
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offset += size;
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}
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return strSid.ToString();
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}
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/// <summary>
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/// Create LDAPObject by LdapEntry
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/// </summary>
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/// <param name="ldapEntry">init ldapEntry</param>
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/// <param name="ldapUniqueIdAttribute"></param>
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/// <returns>LDAPObject</returns>
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public LdapObject ToLdapObject(LdapEntry ldapEntry, string ldapUniqueIdAttribute = null)
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{
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if (ldapEntry == null)
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{
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throw new ArgumentNullException("ldapEntry");
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}
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var novellLdapObject = new NovellLdapObject(_logger, this);
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novellLdapObject.Init(ldapEntry, ldapUniqueIdAttribute);
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return novellLdapObject;
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}
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/// <summary>
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/// Create lis of LDAPObject by LdapEntry list
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/// </summary>
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/// <param name="entries">list of LdapEntry</param>
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/// <param name="ldapUniqueIdAttribute"></param>
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/// <returns>list of LDAPObjects</returns>
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public List<LdapObject> ToLdapObjects(IEnumerable<LdapEntry> entries, string ldapUniqueIdAttribute = null)
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{
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return entries.Select(e => ToLdapObject(e, ldapUniqueIdAttribute)).ToList();
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}
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}
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