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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.IdentityModel.Claims
{
using System.Collections.Generic;
using System.Globalization;
using System.Net.Mail;
using System.Runtime.Serialization;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;
using System.Security.Principal;
// Examples:
// ClaimType ResourceValue ResourceRight
// --------------- ---------------- ------------------
// "File" "boot.ini" "Read"
// "HairColor" "Brown" "PossessProperty"
// "UserName" "[....]" "PossessProperty"
// "Service" "MailService" "Access"
// "Operation" "ReadMail" "Invoke"
// ClaimType:
// DESC: The type of resource for which rights are granted
// XrML: ClaimSet/Resource
// SAML: SamlAttributeStatement/Attribute/@Name/..., SamlAuthorizationDecisionStatement/Action/@Namespace/...
// ResourceValue:
// DESC: Value identifying the resource for which rights are granted
// XrML: ClaimSet/Resource/...
// SAML: SamlAttributeStatement/Attribute/..., SamlAuthorizationDecisionStatement/@Resource/...
// Right:
// DESC: Rights expressed about a resource
// XRML: ClaimSet/Right
// SAML: SamlAttributeStatement (aka. "PossessProperty") or, SamlAuthorizationDecisionStatement/Action/...
[DataContract(Namespace = XsiConstants.Namespace)]
public class Claim
{
static Claim system;
[DataMember(Name = "ClaimType")]
string claimType;
[DataMember(Name = "Resource")]
object resource;
[DataMember(Name = "Right")]
string right;
IEqualityComparer<Claim> comparer;
Claim(string claimType, object resource, string right, IEqualityComparer<Claim> comparer)
{
if (claimType == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("claimType");
if (claimType.Length <= 0)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("claimType", SR.GetString(SR.ArgumentCannotBeEmptyString));
if (right == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("right");
if (right.Length <= 0)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgument("right", SR.GetString(SR.ArgumentCannotBeEmptyString));
this.claimType = StringUtil.OptimizeString(claimType);
this.resource = resource;
this.right = StringUtil.OptimizeString(right);
this.comparer = comparer;
}
public Claim(string claimType, object resource, string right) : this(claimType, resource, right, null)
{
}
public static IEqualityComparer<Claim> DefaultComparer
{
get
{
return EqualityComparer<Claim>.Default;
}
}
public static Claim System
{
get
{
if (system == null)
system = new Claim(ClaimTypes.System, XsiConstants.System, Rights.Identity);
return system;
}
}
public object Resource
{
get { return this.resource; }
}
public string ClaimType
{
get { return this.claimType; }
}
public string Right
{
get { return this.right; }
}
// Turn key claims
public static Claim CreateDnsClaim(string dns)
{
if (dns == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("dns");
return new Claim(ClaimTypes.Dns, dns, Rights.PossessProperty, ClaimComparer.Dns);
}
public static Claim CreateDenyOnlyWindowsSidClaim(SecurityIdentifier sid)
{
if (sid == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("sid");
return new Claim(ClaimTypes.DenyOnlySid, sid, Rights.PossessProperty);
}
public static Claim CreateHashClaim(byte[] hash)
{
if (hash == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("hash");
return new Claim(ClaimTypes.Hash, SecurityUtils.CloneBuffer(hash), Rights.PossessProperty, ClaimComparer.Hash);
}
public static Claim CreateMailAddressClaim(MailAddress mailAddress)
{
if (mailAddress == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("mailAddress");
return new Claim(ClaimTypes.Email, mailAddress, Rights.PossessProperty);
}
public static Claim CreateNameClaim(string name)
{
if (name == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("name");
return new Claim(ClaimTypes.Name, name, Rights.PossessProperty);
}
public static Claim CreateRsaClaim(RSA rsa)
{
if (rsa == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("rsa");
return new Claim(ClaimTypes.Rsa, rsa, Rights.PossessProperty, ClaimComparer.Rsa);
}
public static Claim CreateSpnClaim(string spn)
{
if (spn == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("spn");
return new Claim(ClaimTypes.Spn, spn, Rights.PossessProperty);
}
public static Claim CreateThumbprintClaim(byte[] thumbprint)
{
if (thumbprint == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("thumbprint");
return new Claim(ClaimTypes.Thumbprint, SecurityUtils.CloneBuffer(thumbprint), Rights.PossessProperty, ClaimComparer.Thumbprint);
}
public static Claim CreateUpnClaim(string upn)
{
if (upn == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("upn");
return new Claim(ClaimTypes.Upn, upn, Rights.PossessProperty, ClaimComparer.Upn);
}
public static Claim CreateUriClaim(Uri uri)
{
if (uri == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("uri");
return new Claim(ClaimTypes.Uri, uri, Rights.PossessProperty);
}
public static Claim CreateWindowsSidClaim(SecurityIdentifier sid)
{
if (sid == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("sid");
return new Claim(ClaimTypes.Sid, sid, Rights.PossessProperty);
}
public static Claim CreateX500DistinguishedNameClaim(X500DistinguishedName x500DistinguishedName)
{
if (x500DistinguishedName == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("x500DistinguishedName");
return new Claim(ClaimTypes.X500DistinguishedName, x500DistinguishedName, Rights.PossessProperty, ClaimComparer.X500DistinguishedName);
}
public override bool Equals(object obj)
{
if (comparer == null)
comparer = ClaimComparer.GetComparer(this.claimType);
return comparer.Equals(this, obj as Claim);
}
public override int GetHashCode()
{
if (comparer == null)
comparer = ClaimComparer.GetComparer(this.claimType);
return comparer.GetHashCode(this);
}
public override string ToString()
{
return string.Format(CultureInfo.CurrentCulture, "{0}: {1}", this.right, this.claimType);
}
}
}
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