ExtendedProtectionPolicy.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / security / system / security / authentication / ExtendedProtection / ExtendedProtectionPolicy.cs / 1305376 / ExtendedProtectionPolicy.cs
                        
                        
                            //------------------------------------------------------------------------------ 
//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//----------------------------------------------------------------------------- 

using System; 
using System.Collections; 
using System.ComponentModel;
using System.Net; 
using System.Runtime.InteropServices;
using System.Runtime.Serialization;
using System.Security.Permissions;
using System.Text; 

namespace System.Security.Authentication.ExtendedProtection 
{ 
    /// 
    /// This class contains the necessary settings for specifying how Extended Protection 
    /// should behave. Use one of the Build* methods to create an instance of this type.
    /// 
    [Serializable]
    [TypeConverter(typeof(ExtendedProtectionPolicyTypeConverter))] 
    public class ExtendedProtectionPolicy : ISerializable
    { 
        private const string policyEnforcementName = "policyEnforcement"; 
        private const string protectionScenarioName = "protectionScenario";
        private const string customServiceNamesName = "customServiceNames"; 
        private const string customChannelBindingName = "customChannelBinding";

        private ServiceNameCollection customServiceNames;
        private PolicyEnforcement policyEnforcement; 
        private ProtectionScenario protectionScenario;
        private ChannelBinding customChannelBinding; 
 
        public ExtendedProtectionPolicy(PolicyEnforcement policyEnforcement,
                                        ProtectionScenario protectionScenario, 
                                        ServiceNameCollection customServiceNames)
        {
            if (policyEnforcement == PolicyEnforcement.Never)
            { 
                throw new ArgumentException(SR.GetString(SR.security_ExtendedProtectionPolicy_UseDifferentConstructorForNever), "policyEnforcement");
            } 
            if (customServiceNames != null && customServiceNames.Count == 0) 
            {
                throw new ArgumentException(SR.GetString(SR.security_ExtendedProtectionPolicy_NoEmptyServiceNameCollection), "customServiceNames"); 
            }

            this.policyEnforcement = policyEnforcement;
            this.protectionScenario = protectionScenario; 
            this.customServiceNames = customServiceNames;
        } 
 
        public ExtendedProtectionPolicy(PolicyEnforcement policyEnforcement,
                                        ProtectionScenario protectionScenario, 
                                        ICollection customServiceNames)
            : this(policyEnforcement, protectionScenario,
                   customServiceNames == null ? (ServiceNameCollection)null : new ServiceNameCollection(customServiceNames))
        { 
        }
 
        public ExtendedProtectionPolicy(PolicyEnforcement policyEnforcement, 
                                        ChannelBinding customChannelBinding)
        { 
            if (policyEnforcement == PolicyEnforcement.Never)
            {
                throw new ArgumentException(SR.GetString(SR.security_ExtendedProtectionPolicy_UseDifferentConstructorForNever), "policyEnforcement");
            } 
            if (customChannelBinding == null)
            { 
                throw new ArgumentNullException("customChannelBinding"); 
            }
 
            this.policyEnforcement = policyEnforcement;
            this.protectionScenario = ProtectionScenario.TransportSelected;
            this.customChannelBinding = customChannelBinding;
        } 

        public ExtendedProtectionPolicy(PolicyEnforcement policyEnforcement) 
        { 
            // this is the only constructor which allows PolicyEnforcement.Never.
            this.policyEnforcement = policyEnforcement; 
            this.protectionScenario = ProtectionScenario.TransportSelected;
        }

        protected ExtendedProtectionPolicy(SerializationInfo info, StreamingContext context) 
        {
            policyEnforcement = (PolicyEnforcement)info.GetInt32(policyEnforcementName); 
            protectionScenario = (ProtectionScenario)info.GetInt32(protectionScenarioName); 
            customServiceNames = (ServiceNameCollection)info.GetValue(customServiceNamesName, typeof(ServiceNameCollection));
 
            byte[] channelBindingData = (byte[])info.GetValue(customChannelBindingName, typeof(byte[]));
            if (channelBindingData != null)
            {
                customChannelBinding = SafeLocalFreeChannelBinding.LocalAlloc(channelBindingData.Length); 
                Marshal.Copy(channelBindingData, 0, customChannelBinding.DangerousGetHandle(), channelBindingData.Length);
            } 
        } 

        public ServiceNameCollection CustomServiceNames 
        {
            get { return customServiceNames; }
        }
 
        public PolicyEnforcement PolicyEnforcement
        { 
            get { return policyEnforcement; } 
        }
 
        public ProtectionScenario ProtectionScenario
        {
            get { return protectionScenario; }
        } 

        public ChannelBinding CustomChannelBinding 
        { 
            get { return customChannelBinding; }
        } 

        public override string ToString()
        {
            StringBuilder sb = new StringBuilder(); 
            sb.Append("ProtectionScenario=");
            sb.Append(protectionScenario.ToString()); 
            sb.Append("; PolicyEnforcement="); 
            sb.Append(policyEnforcement.ToString());
 
            sb.Append("; CustomChannelBinding=");
            if (customChannelBinding == null)
            {
                sb.Append(""); 
            }
            else 
            { 
                sb.Append(customChannelBinding.ToString());
            } 

            sb.Append("; ServiceNames=");
            if (customServiceNames == null)
            { 
                sb.Append("");
            } 
            else 
            {
                bool first = true; 
                foreach (string serviceName in customServiceNames)
                {
                    if (first)
                    { 
                        first = false;
                    } 
                    else 
                    {
                        sb.Append(", "); 
                    }

                    sb.Append(serviceName);
                } 
            }
 
            return sb.ToString(); 
        }
 
        public static bool OSSupportsExtendedProtection
        {
            get
            { 
                return AuthenticationManager.OSSupportsExtendedProtection;
            } 
        } 

        [SecurityPermissionAttribute(SecurityAction.LinkDemand, SerializationFormatter = true)] 
        void ISerializable.GetObjectData(SerializationInfo info, StreamingContext context)
        {
            info.AddValue(policyEnforcementName, (int)policyEnforcement);
            info.AddValue(protectionScenarioName, (int)protectionScenario); 
            info.AddValue(customServiceNamesName, customServiceNames, typeof(ServiceNameCollection));
 
            if (customChannelBinding == null) 
            {
                info.AddValue(customChannelBindingName, null, typeof(byte[])); 
            }
            else
            {
                byte[] channelBindingData = new byte[customChannelBinding.Size]; 
                Marshal.Copy(customChannelBinding.DangerousGetHandle(), channelBindingData, 0, customChannelBinding.Size);
                info.AddValue(customChannelBindingName, channelBindingData, typeof(byte[])); 
            } 
        }
    } 
}

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

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