AuthenticationModulesSection.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Net / System / Net / Configuration / AuthenticationModulesSection.cs / 1 / AuthenticationModulesSection.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Net.Configuration 
{ 
    using System.Configuration;
    using System.Collections.Generic; 
    using System.Globalization;
    using System.Net;
    using System.Threading;
 
    public sealed class AuthenticationModulesSection : ConfigurationSection
    { 
        public AuthenticationModulesSection() 
        {
            this.properties.Add(this.authenticationModules); 
        }

        protected override void PostDeserialize()
        { 
            // Perf optimization. If the configuration is coming from machine.config
            // It is safe and we don't need to check for permissions. 
            if (EvaluationContext.IsMachineLevel) 
                return;
 
            try {
                ExceptionHelper.UnmanagedPermission.Demand();
            } catch (Exception exception) {
                throw new ConfigurationErrorsException( 
                              SR.GetString(SR.net_config_section_permission,
                                           ConfigurationStrings.AuthenticationModulesSectionName), 
                              exception); 
            }
        } 

        [ConfigurationProperty("", IsDefaultCollection = true)]
        public AuthenticationModuleElementCollection AuthenticationModules
        { 
            get { return (AuthenticationModuleElementCollection)this[this.authenticationModules]; }
        } 
 
        protected override void InitializeDefault()
        { 
#if !FEATURE_PAL // Security
            this.AuthenticationModules.Add(
                new AuthenticationModuleElement(typeof(NegotiateClient).AssemblyQualifiedName));
            this.AuthenticationModules.Add( 
                new AuthenticationModuleElement(typeof(KerberosClient).AssemblyQualifiedName));
            this.AuthenticationModules.Add( 
                new AuthenticationModuleElement(typeof(NtlmClient).AssemblyQualifiedName)); 
            this.AuthenticationModules.Add(
                new AuthenticationModuleElement(typeof(DigestClient).AssemblyQualifiedName)); 
            this.AuthenticationModules.Add(
                new AuthenticationModuleElement(typeof(BasicClient).AssemblyQualifiedName));
#endif // !FEATURE_PAL // Security
        } 

        protected override ConfigurationPropertyCollection Properties 
        { 
            get { return this.properties; }
        } 

        ConfigurationPropertyCollection properties = new ConfigurationPropertyCollection();

        readonly ConfigurationProperty authenticationModules = 
            new ConfigurationProperty(null, typeof(AuthenticationModuleElementCollection), null,
                    ConfigurationPropertyOptions.IsDefaultCollection); 
    } 

    internal sealed class AuthenticationModulesSectionInternal 
    {
        internal AuthenticationModulesSectionInternal(AuthenticationModulesSection section)
        {
            if (section.AuthenticationModules.Count > 0) 
            {
                this.authenticationModules = new List(section.AuthenticationModules.Count); 
                foreach(AuthenticationModuleElement authenticationModuleElement in section.AuthenticationModules) 
                {
                    Type type = null; 

                    try
                    {
                        type = Type.GetType(authenticationModuleElement.Type, true, true); 

                        // verify that its of the proper type of object 
                        if (!typeof(IAuthenticationModule).IsAssignableFrom(type)) 
                        {
                            throw new InvalidCastException(SR.GetString(SR.net_invalid_cast, type.FullName, "IAuthenticationModule")); 
                        }
                    }
                    catch (Exception exception)
                    { 
                        if (NclUtilities.IsFatal(exception)) throw;
 
                        throw new ConfigurationErrorsException(SR.GetString(SR.net_config_authenticationmodules), exception); 
                    }
                    catch 
                    {
                        throw new ConfigurationErrorsException(SR.GetString(SR.net_config_authenticationmodules), new Exception(SR.GetString(SR.net_nonClsCompliantException)));
                    }
 
                    this.authenticationModules.Add(type);
                } 
            } 
        }
 
        internal List AuthenticationModules
        {
            get
            { 
                List retval = this.authenticationModules;
                if (retval == null) 
                { 
                    retval = new List(0);
                } 
                return retval;
            }
        }
 
        internal static object ClassSyncObject
        { 
            get 
            {
                if (classSyncObject == null) 
                {
                    object o = new object();
                    Interlocked.CompareExchange(ref classSyncObject, o, null);
                } 
                return classSyncObject;
            } 
        } 

        static internal AuthenticationModulesSectionInternal GetSection() 
        {
            lock (AuthenticationModulesSectionInternal.ClassSyncObject)
            {
                AuthenticationModulesSection section = PrivilegedConfigurationManager.GetSection(ConfigurationStrings.AuthenticationModulesSectionPath) as AuthenticationModulesSection; 
                if (section == null)
                    return null; 
 
                return new AuthenticationModulesSectionInternal(section);
            } 
        }

        List authenticationModules = null;
        static object classSyncObject = null; 
    }
}

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