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Custom Authentication and Security for Routing Service of WCF 4.0

By , 13 Oct 2012
 
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ServiceInitializer.cs
 
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IdentityModel.Policy;
using System.Linq;
using System.Security.Authentication;
using System.Security.Principal;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.Text;
using System.Threading;
using GlobalCommonLib;

namespace ServiceCommonLib
{
    public class CentralUserIdentity : IIdentity
    {
        private readonly CentralRequestSession _session;
        public CentralUserIdentity(CentralRequestSession session)
        {
            this._session = session;
        }

        public string Name
        {
            get { return _session.UserName; }
        }

        public string AuthenticationType
        {
            get { return "Central"; }
        }

        public bool IsAuthenticated
        {
            get { return true; }
        }

        public CentralRequestSession Session
        {
            get { return _session; }
        }
    }

    public class CentralPrincipal : IPrincipal
    {
        readonly IIdentity _identity;
        string[] _roles = null;

        public CentralPrincipal(IIdentity identity)
        {
            this._identity = identity;
        }

        public static CentralPrincipal Current
        {
            get
            {
                return Thread.CurrentPrincipal as CentralPrincipal;
            }
        }

        public IIdentity Identity
        {
            get { return _identity; }
        }

        public string[] Roles
        {
            get
            {
                //Findout Role and set here 
                return _roles;
            }
        }

        public bool IsInRole(string role)
        {
            //Findout Role and set here 
            return true;
        }       
    }

    public class CentralAuthenticationManager : ServiceAuthenticationManager
    {
        public override ReadOnlyCollection<IAuthorizationPolicy> Authenticate(ReadOnlyCollection<IAuthorizationPolicy> authPolicy, Uri listenUri, ref Message message)
        {
            var session = CredentialHelper.GetSessionData(message);
            CheckCredentials(session);

            var identity = new CentralUserIdentity(session);
            IPrincipal user = new CentralPrincipal(identity);
            message.Properties["Principal"] = user;

            return authPolicy;
        }

        public void CheckCredentials(CentralRequestSession credentials)
        {
            System.Console.WriteLine("Checking Credentils for {0}..........", credentials.UserName);
            // check the user and password against a database; 
            // if not match 
            // throw new AuthenticationException("Incorrect credentials!");        
            System.Console.WriteLine( "{0} is Valid!!", credentials.UserName);

        }
    }



}

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

About the Author

 Morshed Anwar
Team Leader Adaptive Enterprise Limited (www.ael-bd.com)
Bangladesh Bangladesh
Member
No Biography provided

About Article
Defining security contextes in Routing service environment.
Type Article
Licence CPOL
First Posted 13 Sep 2012
Views 7,799
Downloads 450
Bookmarked 20 times
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