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// ==++==
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// ==--==
// <OWNER>Microsoft</OWNER>
//
//
// GenericPrincipal.cs
//
namespace System.Security.Principal
{
using System;
using System.Diagnostics.Contracts;
#if !FEATURE_CORECLR
using System.Collections.Generic;
using System.Runtime.Serialization;
using System.Security.Claims;
#endif
[Serializable]
[System.Runtime.InteropServices.ComVisible(true)]
#if !FEATURE_CORECLR
public class GenericPrincipal : ClaimsPrincipal {
#else
public class GenericPrincipal : IPrincipal {
#endif
private IIdentity m_identity;
private string[] m_roles;
public GenericPrincipal(IIdentity identity, string[] roles) {
if (identity == null)
throw new ArgumentNullException("identity");
Contract.EndContractBlock();
m_identity = identity;
if (roles != null) {
m_roles = new string[roles.Length];
for (int i = 0; i < roles.Length; ++i) {
m_roles[i] = roles[i];
}
}
else {
m_roles = null;
}
#if !FEATURE_CORECLR
AddIdentityWithRoles(m_identity, m_roles);
}
[OnDeserialized()]
private void OnDeserializedMethod(StreamingContext context)
{
// Here it the matrix of possible serializations
//
// Version From | Version To | ClaimsIdentities | Roles
// ============ ========== ================ ========================================================
// 4.0 4.5 None We always need to add a ClaimsIdentity, if Roles add them
//
// 4.5 4.5 Yes There should be a ClaimsIdentity, DebugAssert if this is not the case
// If there are roles, attach them to the first ClaimsIdentity.
// If there is no non-null ClaimsIdentity, add one. However, this is unusual and may be a bug.
ClaimsIdentity firstNonNullIdentity = null;
foreach (var identity in base.Identities)
{
if (identity != null)
{
firstNonNullIdentity = identity;
break;
}
}
if (m_roles != null && m_roles.Length > 0 && firstNonNullIdentity != null)
{
firstNonNullIdentity.ExternalClaims.Add(new RoleClaimProvider(ClaimsIdentity.DefaultIssuer, m_roles, firstNonNullIdentity).Claims);
}
else if (firstNonNullIdentity == null)
{
AddIdentityWithRoles(m_identity, m_roles);
}
}
/// <summary>
/// helper method to add roles
/// </summary>
[SecuritySafeCritical]
void AddIdentityWithRoles(IIdentity identity, string[] roles)
{
ClaimsIdentity claimsIdentity = identity as ClaimsIdentity;
if (claimsIdentity != null)
{
claimsIdentity = claimsIdentity.Clone();
}
else
{
claimsIdentity = new ClaimsIdentity(identity);
}
// if roles are not null then we need to add a provider
if (roles != null && roles.Length > 0)
{
claimsIdentity.ExternalClaims.Add(new RoleClaimProvider(ClaimsIdentity.DefaultIssuer, roles, claimsIdentity).Claims);
}
base.AddIdentity(claimsIdentity);
}
#else
}
#endif
#if !FEATURE_CORECLR
public override IIdentity Identity {
#else
public virtual IIdentity Identity {
#endif
get { return m_identity; }
}
#if !FEATURE_CORECLR
public override bool IsInRole(string role) {
#else
public virtual bool IsInRole (string role) {
#endif
if (role == null || m_roles == null)
return false;
for (int i = 0; i < m_roles.Length; ++i) {
if (m_roles[i] != null && String.Compare(m_roles[i], role, StringComparison.OrdinalIgnoreCase) == 0)
return true;
}
#if !FEATURE_CORECLR
// it may be the case a ClaimsIdentity was passed in as the IIdentity which may have contained claims, they need to be checked.
return base.IsInRole(role);
#else
return false;
#endif
}
}
}
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