mirror of https://github.com/dahall/Vanara.git
65 lines
3.4 KiB
C#
65 lines
3.4 KiB
C#
#if NET20 || NET35 || NET40 || NET45
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using System.Security.Principal;
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using static Vanara.PInvoke.AdvApi32;
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namespace Vanara.Security.Principal
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{
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/// <summary>
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/// Impersonation of a user. Allows to execute code under another user context. Please note that the account that instantiates this class
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/// needs to have the 'Act as part of operating system' privilege set.
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/// </summary>
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/// <remarks>
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/// <code>
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/// // The following code impersonates an account to perform work
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/// using (new WindowsImpersonatedIdentity("bob", "WORKDOMAIN", "bobs_secret_passw0rd")
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/// {
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/// // Perform impersonated work in the body. Once the 'using' statement closes,
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/// // the impersonation ends.
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/// }
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/// </code>
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/// </remarks>
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public class WindowsImpersonatedIdentity : WindowsLoggedInIdentity
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{
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private readonly WindowsImpersonationContext impersonationContext;
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/// <summary>
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/// Starts the impersonation with the given credentials. Please note that the account that instantiates this class needs to have the
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/// 'Act as part of operating system' privilege set.
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/// </summary>
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/// <param name="userName">
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/// A string that specifies the name of the user. This is the name of the user account to log on to. If you use the user principal
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/// name (UPN) format, User@DNSDomainName, the <paramref name="domainName"/> parameter must be NULL.
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/// </param>
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/// <param name="domainName">
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/// A string that specifies the name of the domain or server whose account database contains the <paramref name="userName"/> account.
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/// If this parameter is NULL, the user name must be specified in UPN format. If this parameter is ".", the account is validated by
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/// using only the local account database.
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/// </param>
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/// <param name="password">A string that specifies the plain-text password for the user account specified by <paramref name="userName"/>.</param>
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/// <param name="logonType">
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/// Type of the logon. This parameter can usually be left as the default. For more information, lookup more detail for the
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/// dwLogonType parameter of the Windows LogonUser function.
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/// </param>
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/// <param name="provider">
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/// The logon provider. This parameter can usually be left as the default. For more information, lookup more detail for the
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/// dwLogonProvider parameter of the Windows LogonUser function.
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/// </param>
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public WindowsImpersonatedIdentity(string userName, string domainName, string password, LogonUserType logonType = LogonUserType.LOGON32_LOGON_INTERACTIVE,
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LogonUserProvider provider = LogonUserProvider.LOGON32_PROVIDER_DEFAULT) : base(userName, domainName, password, logonType, provider) => impersonationContext = AuthenticatedIdentity.Impersonate();
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/// <summary>
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/// Starts the impersonation with the given <see cref="WindowsIdentity"/>. Please note that the account that instantiates this class
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/// needs to have the 'Act as part of operating system' privilege set.
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/// </summary>
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/// <param name="identityToImpersonate">The identity to impersonate.</param>
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public WindowsImpersonatedIdentity(WindowsIdentity identityToImpersonate) : base(identityToImpersonate) => impersonationContext = AuthenticatedIdentity.Impersonate();
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/// <summary>Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.</summary>
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public override void Dispose()
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{
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impersonationContext?.Undo();
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base.Dispose();
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}
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}
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}
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#endif |