Claim.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / IdentityModel / System / IdentityModel / Claims / Claim.cs / 1305376 / Claim.cs
                        
                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------

namespace System.IdentityModel.Claims 
{
    using System.Collections; 
    using System.Collections.Generic; 
    using System.Globalization;
    using System.IO; 
    using System.Net.Mail;
    using System.Runtime.Serialization;
    using System.Security.Principal;
    using System.Security.Cryptography; 
    using System.Security.Cryptography.X509Certificates;
 
    // 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 comparer; 

        Claim(string claimType, object resource, string right, IEqualityComparer 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 = claimType;
            this.resource = resource; 
            this.right = right;
            this.comparer = comparer;
        }
 
        public Claim(string claimType, object resource, string right) : this(claimType, resource, right, null)
        { 
        } 

        public static IEqualityComparer DefaultComparer 
        {
            get
            {
                return EqualityComparer.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);
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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Claim.cs source code in C# .NET

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