81 lines
2.7 KiB
C#
81 lines
2.7 KiB
C#
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//
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// System.Web.Security.MembershipHelper
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//
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// Authors:
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// Ben Maurer (bmaurer@users.sourceforge.net)
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// Lluis Sanchez Gual (lluis@novell.com)
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//
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// (C) 2003 Ben Maurer
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// Copyright (C) 2005-2010 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System.Configuration.Provider;
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using System.Security.Cryptography;
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using System.Web.Configuration;
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using System.Web.Util;
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namespace System.Web.Security
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{
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sealed class MembershipHelper
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: IMembershipHelper
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{
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internal const int SALT_BYTES = 16;
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public int UserIsOnlineTimeWindow {
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get { return Membership.UserIsOnlineTimeWindow; }
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}
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public MembershipProviderCollection Providers {
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get { return Membership.Providers; }
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}
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static SymmetricAlgorithm GetAlgorithm ()
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{
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MachineKeySection section = MachineKeySection.Config;
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if (section.DecryptionKey.StartsWith ("AutoGenerate"))
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throw new ProviderException ("You must explicitly specify a decryption key in the <machineKey> section when using encrypted passwords.");
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SymmetricAlgorithm sa = section.GetDecryptionAlgorithm ();
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if (sa == null)
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throw new ProviderException (String.Format ("Unsupported decryption attribute '{0}' in <machineKey> configuration section", section.Decryption));
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sa.Key = section.GetDecryptionKey ();
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return sa;
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}
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public byte [] DecryptPassword (byte [] encodedPassword)
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{
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using (SymmetricAlgorithm sa = GetAlgorithm ()) {
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return MachineKeySectionUtils.Decrypt (sa, encodedPassword, 0, encodedPassword.Length);
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}
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}
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public byte[] EncryptPassword (byte[] password)
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{
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using (SymmetricAlgorithm sa = GetAlgorithm ()) {
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return MachineKeySectionUtils.Encrypt (sa, password);
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}
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}
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}
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}
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