#region
/* -----------------------------------------------------------------------
 * <copyright file="Proxy.cs" company="GRNet">
 * 
 * Copyright 2011-2012 GRNET S.A. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 *
 *   1. Redistributions of source code must retain the above
 *      copyright notice, this list of conditions and the following
 *      disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above
 *      copyright notice, this list of conditions and the following
 *      disclaimer in the documentation and/or other materials
 *      provided with the distribution.
 *
 *
 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * The views and conclusions contained in the software and
 * documentation are those of the authors and should not be
 * interpreted as representing official policies, either expressed
 * or implied, of GRNET S.A.
 * </copyright>
 * -----------------------------------------------------------------------
 */
#endregion
using System.Net;
using Pithos.Interfaces;

namespace Pithos.Client.WPF
{
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;

    /// <summary>
    /// TODO: Update summary.
    /// </summary>
    public class Proxy
    {
        //or the proxy changes, not when the monitor starts
        public static void SetFromSettings(IPithosSettings pithosSettings)
        {
            IWebProxy proxy;
            if (pithosSettings.UseNoProxy)
            {
                proxy = null;
            }
            else if (pithosSettings.UseManualProxy)
            {
                proxy = new WebProxy(pithosSettings.ProxyServer, pithosSettings.ProxyPort);
                //If the proxy requires specific authentication settings, use them
                if (pithosSettings.ProxyAuthentication)
                {
                    proxy.Credentials = new NetworkCredential(pithosSettings.ProxyUsername, pithosSettings.ProxyPassword, pithosSettings.ProxyDomain);
                }
                //Otherwise, if there are generic authentication settings, use them
                if (!String.IsNullOrWhiteSpace(CredentialCache.DefaultNetworkCredentials.UserName))
                {
                    proxy.Credentials = CredentialCache.DefaultNetworkCredentials;
                }
            }
            //In all other cases, use the default proxy
            else 
            {
                proxy = WebRequest.GetSystemWebProxy();
                //We can't use any previous proxy credentials when we pick the default proxy
                //If we set the proxy due to a change in settings, the credentials will only be 
                //valid for the previous proxy.
                proxy.Credentials = CredentialCache.DefaultNetworkCredentials;
            }
            WebRequest.DefaultWebProxy = proxy;
        }


        public static void SetCredentials(string proxyUsername, string proxyPassword, string proxyDomain)
        {
            CredentialCache.DefaultNetworkCredentials.Password = proxyPassword;
            CredentialCache.DefaultNetworkCredentials.UserName = proxyUsername;
            CredentialCache.DefaultNetworkCredentials.Domain = proxyDomain;
            if (WebRequest.DefaultWebProxy!=null)
                WebRequest.DefaultWebProxy.Credentials = CredentialCache.DefaultNetworkCredentials;
        }
    }
}