FirewallDecompiler.cs :  » Installers-Generators » WiX » Microsoft » Tools » WindowsInstallerXml » Extensions » C# / CSharp Open Source

//-------------------------------------------------------------------------------------------------
// <copyright file="FirewallDecompiler.cs" company="Microsoft">
//    Copyright (c) Microsoft Corporation.  All rights reserved.
//    
//    The use and distribution terms for this software are covered by the
//    Common Public License 1.0 (http://opensource.org/licenses/cpl.php)
//    which can be found in the file CPL.TXT at the root of this distribution.
//    By using this software in any fashion, you are agreeing to be bound by
//    the terms of this license.
//    
//    You must not remove this notice, or any other, from this software.
// </copyright>
// 
// <summary>
// The decompiler for the Windows Installer XML Toolset Firewall Extension.
// </summary>
//-------------------------------------------------------------------------------------------------

namespace Microsoft.Tools.WindowsInstallerXml.Extensions{
    using System;
    using System.Collections;
    using System.Diagnostics;
    using System.Globalization;

    using Firewall = Microsoft.Tools.WindowsInstallerXml.Extensions.Serialize.Firewall;
    using Wix = Microsoft.Tools.WindowsInstallerXml.Serialize;

    /// <summary>
    /// The decompiler for the Windows Installer XML Toolset Firewall Extension.
    /// </summary>
    public sealed class FirewallDecompiler : DecompilerExtension
    {
        /// <summary>
        /// Decompiles an extension table.
        /// </summary>
        /// <param name="table">The table to decompile.</param>
        public override void DecompileTable(Table table)
        {
            switch (table.Name)
            {
                case "WixFirewallException":
                    this.DecompileWixFirewallExceptionTable(table);
                    break;
                default:
                    base.DecompileTable(table);
                    break;
            }
        }

        /// <summary>
        /// Decompile the WixFirewallException table.
        /// </summary>
        /// <param name="table">The table to decompile.</param>
        private void DecompileWixFirewallExceptionTable(Table table)
        {
            foreach (Row row in table.Rows)
            {
                Firewall.FirewallException fire = new Firewall.FirewallException();
                fire.Id = (string)row[0];
                fire.Name = (string)row[1];

                string[] addresses = ((string)row[2]).Split(',');
                if (1 == addresses.Length)
                {
                    // special-case the Scope attribute values
                    if ("*" == addresses[0])
                    {
                        fire.Scope = Firewall.FirewallException.ScopeType.any;
                    }
                    else if ("LocalSubnet" == addresses[0])
                    {
                        fire.Scope = Firewall.FirewallException.ScopeType.localSubnet;
                    }
                    else
                    {
                        FirewallDecompiler.AddRemoteAddress(fire, addresses[0]);
                    }
                }
                else
                {
                    foreach (string address in addresses)
                    {
                        FirewallDecompiler.AddRemoteAddress(fire, address);
                    }
                }

                if (!row.IsColumnEmpty(3))
                {
                    fire.Port = (string)row[3];
                }

                // from icftypes.h
                const int NET_FW_IP_PROTOCOL_TCP = 6;
                const int NET_FW_IP_PROTOCOL_UDP  = 17;

                if (!row.IsColumnEmpty(4))
                {
                    switch (Convert.ToInt32(row[4]))
                    {
                        case NET_FW_IP_PROTOCOL_TCP:
                            fire.Protocol = Firewall.FirewallException.ProtocolType.tcp;
                            break;
                        case NET_FW_IP_PROTOCOL_UDP:
                            fire.Protocol = Firewall.FirewallException.ProtocolType.udp;
                            break;
                    }
                }

                if (!row.IsColumnEmpty(5))
                {
                    fire.Program = (string)row[5];
                }

                if (!row.IsColumnEmpty(6))
                {
                    int attr = Convert.ToInt32(row[6]);
                    if (0x1 == (attr & 0x1)) // feaIgnoreFailures
                    {
                        fire.IgnoreFailure = Firewall.YesNoType.yes;
                    }
                }

                Wix.Component component = (Wix.Component)this.Core.GetIndexedElement("Component", (string)row[7]);
                if (null != component)
                {
                    component.AddChild(fire);
                }
                else
                {
                    this.Core.OnMessage(WixWarnings.ExpectedForeignRow(row.SourceLineNumbers, table.Name, row.GetPrimaryKey(DecompilerCore.PrimaryKeyDelimiter), "Component_", (string)row[6], "Component"));
                }
            }
        }

        private static void AddRemoteAddress(Firewall.FirewallException fire, string address)
        {
            Firewall.RemoteAddress remote = new Firewall.RemoteAddress();
            remote.Content = address;
            fire.AddChild(remote);
        }
    }
}