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//-----------------------------------------------------------------------
// <copyright file="OAuthPrincipal.cs" company="Outercurve Foundation">
// Copyright (c) Outercurve Foundation. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.OAuth.ChannelElements {
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
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="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 or sets the access token used to create this principal.
/// </summary>
/// <value>A non-empty string.</value>
public string AccessToken { get; protected set; }
/// <summary>
/// Gets the roles that this principal has as a ReadOnlyCollection.
/// </summary>
public ReadOnlyCollection<string> Roles
{
get { return new ReadOnlyCollection<string>(this.roles.ToList()); }
}
#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
/// <summary>
/// Creates a new instance of GenericPrincipal based on this OAuthPrincipal.
/// </summary>
/// <returns>A new instance of GenericPrincipal with a GenericIdentity, having the same username and roles as this OAuthPrincipal and OAuthIdentity</returns>
public GenericPrincipal CreateGenericPrincipal()
{
return new GenericPrincipal(new GenericIdentity(this.Identity.Name), this.roles.ToArray());
}
}
}
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