179 lines
5.8 KiB
C#
179 lines
5.8 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.Core.Encryption;
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[ProtoContract]
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public class EncryptionSettings
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{
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[ProtoMember(1)]
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internal string Pass;
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public EncryptionSettings()
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{
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Password = string.Empty;
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Status = EncryprtionStatus.Decrypted;
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NotifyUsers = true;
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}
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public string Password
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{
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get => Pass;
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set => Pass = (value ?? string.Empty).Replace('#', '_');
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}
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[ProtoMember(2)]
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public EncryprtionStatus Status { get; set; }
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[ProtoMember(3)]
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public bool NotifyUsers { get; set; }
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}
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[Scope]
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public class EncryptionSettingsHelper
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{
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private const string Key = "EncryptionSettings";
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private readonly CoreConfiguration _coreConfiguration;
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private readonly AscCacheNotify _ascCacheNotify;
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private readonly InstanceCrypto _instanceCrypto;
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public EncryptionSettingsHelper(CoreConfiguration coreConfiguration, AscCacheNotify ascCacheNotify, InstanceCrypto instanceCrypto)
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{
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_coreConfiguration = coreConfiguration;
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_ascCacheNotify = ascCacheNotify;
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_instanceCrypto = instanceCrypto;
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}
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public void Save(EncryptionSettings encryptionSettings)
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{
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var settings = Serialize(encryptionSettings);
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_coreConfiguration.SaveSetting(Key, settings);
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_ascCacheNotify.ClearCache();
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}
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public EncryptionSettings Load()
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{
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var settings = _coreConfiguration.GetSetting(Key);
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return Deserialize(settings);
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}
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public string Serialize(EncryptionSettings encryptionSettings)
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{
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return string.Join("#",
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string.IsNullOrEmpty(encryptionSettings.Pass) ? string.Empty : _instanceCrypto.Encrypt(encryptionSettings.Pass),
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(int)encryptionSettings.Status,
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encryptionSettings.NotifyUsers
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);
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}
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public EncryptionSettings Deserialize(string value)
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{
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if (string.IsNullOrEmpty(value))
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{
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return new EncryptionSettings();
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}
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var parts = value.Split(new[] { '#' }, StringSplitOptions.None);
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var password = string.IsNullOrEmpty(parts[0]) ? string.Empty : _instanceCrypto.Decrypt(parts[0]);
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var status = int.Parse(parts[1]);
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var notifyUsers = bool.Parse(parts[2]);
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return new EncryptionSettings
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{
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Password = password,
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Status = (EncryprtionStatus)status,
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NotifyUsers = notifyUsers
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};
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}
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// source System.Web.Security.Membership.GeneratePassword
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public string GeneratePassword(int length, int numberOfNonAlphanumericCharacters)
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{
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var punctuations = "!@#$%^&*()_-+=[{]};:>|./?".ToCharArray();
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if (length < 1 || length > 128)
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{
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throw new ArgumentException("password_length_incorrect", nameof(length));
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}
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if (numberOfNonAlphanumericCharacters > length || numberOfNonAlphanumericCharacters < 0)
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{
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throw new ArgumentException("min_required_non_alphanumeric_characters_incorrect", nameof(numberOfNonAlphanumericCharacters));
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}
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var array2 = new char[length];
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var num = 0;
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var array = RandomNumberGenerator.GetBytes(length);
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for (var i = 0; i < length; i++)
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{
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var num2 = array[i] % 87;
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if (num2 < 10)
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{
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array2[i] = (char)(48 + num2);
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continue;
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}
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if (num2 < 36)
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{
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array2[i] = (char)(65 + num2 - 10);
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continue;
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}
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if (num2 < 62)
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{
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array2[i] = (char)(97 + num2 - 36);
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continue;
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}
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array2[i] = punctuations[num2 - 62];
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num++;
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}
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if (num < numberOfNonAlphanumericCharacters)
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{
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for (var j = 0; j < numberOfNonAlphanumericCharacters - num; j++)
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{
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int num3;
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do
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{
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num3 = RandomNumberGenerator.GetInt32(0, length);
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}
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while (!char.IsLetterOrDigit(array2[num3]));
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array2[num3] = punctuations[RandomNumberGenerator.GetInt32(0, punctuations.Length)];
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}
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}
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return new string(array2);
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}
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}
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