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//-----------------------------------------------------------------------
// <copyright file="OAuthPrincipal.cs" company="Andrew Arnott">
// Copyright (c) Andrew Arnott. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.OAuth.ChannelElements {
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Diagnostics.Contracts;
using System.Linq;
using System.Runtime.InteropServices;
using System.Security.Principal;
/// <summary>
/// Represents an OAuth consumer that is impersonating a known user on the system.
/// </summary>
[SuppressMessage("Microsoft.Interoperability", "CA1409:ComVisibleTypesShouldBeCreatable", Justification = "Not cocreatable.")]
[Serializable]
[ComVisible(true)]
public class OAuthPrincipal : IPrincipal {
/// <summary>
/// The roles this user belongs to.
/// </summary>
private ICollection<string> roles;
/// <summary>
/// Initializes a new instance of the <see cref="OAuthPrincipal"/> class.
/// </summary>
/// <param name="username">The username.</param>
/// <param name="roles">The roles this user belongs to.</param>
public OAuthPrincipal(string username, string[] roles)
: this(new OAuthIdentity(username), roles) {
}
/// <summary>
/// Initializes a new instance of the <see cref="OAuthPrincipal"/> class.
/// </summary>
/// <param name="token">The access token.</param>
internal OAuthPrincipal(IServiceProviderAccessToken token)
: this(token.Username, token.Roles) {
Contract.Requires<ArgumentNullException>(token != null);
this.AccessToken = token.Token;
}
/// <summary>
/// Initializes a new instance of the <see cref="OAuthPrincipal"/> class.
/// </summary>
/// <param name="identity">The identity.</param>
/// <param name="roles">The roles this user belongs to.</param>
internal OAuthPrincipal(OAuthIdentity identity, string[] roles) {
this.Identity = identity;
this.roles = roles;
}
/// <summary>
/// Gets the access token used to create this principal.
/// </summary>
/// <value>A non-empty string.</value>
public string AccessToken { get; private set; }
#region IPrincipal Members
/// <summary>
/// Gets the identity of the current principal.
/// </summary>
/// <value></value>
/// <returns>
/// The <see cref="T:System.Security.Principal.IIdentity"/> object associated with the current principal.
/// </returns>
public IIdentity Identity { get; private set; }
/// <summary>
/// Determines whether the current principal belongs to the specified role.
/// </summary>
/// <param name="role">The name of the role for which to check membership.</param>
/// <returns>
/// true if the current principal is a member of the specified role; otherwise, false.
/// </returns>
/// <remarks>
/// The role membership check uses <see cref="StringComparer.OrdinalIgnoreCase"/>.
/// </remarks>
public bool IsInRole(string role) {
return this.roles.Contains(role, StringComparer.OrdinalIgnoreCase);
}
#endregion
}
}
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