//-----------------------------------------------------------------------
// <copyright file="Installer1.cs" company="bedug.com">
//     Copyright © 2012 Nils Hammar. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
/*
 * Software to access vehicle information via the OBD-II connector.
 * 
 * Copyright © 2012 Nils Hammar
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 * 
 * Alternative licensing is possible, see the licensing document.
 * 
 * The above text may not be removed or modified.
 */

namespace FixAcl
{
    using System.Collections;
    using System.ComponentModel;
    using System.Configuration.Install;
    using System.IO;
    using System.Security.AccessControl;
    using System.Security.Principal;

    /// <summary>
    /// Installer that fixes ACL on Application Data directory so data files can be updated by normal users.
    /// </summary>
    [RunInstaller(true)]
    public partial class Installer1 : Installer
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="Installer1" /> class.
        /// </summary>
        public Installer1()
        {
            this.InitializeComponent();
        }

        /// <summary>
        /// Perform installation and set ACL data.
        /// </summary>
        /// <param name="stateSaver">stateSaver dictionary data.</param>
        [System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand)]
        public override void Install(IDictionary stateSaver)
        {
            // This gets the named parameters passed in from your custom action
            string folder = Context.Parameters["folder"];

            // This gets the "Authenticated Users" group, no matter what it's called
            // SecurityIdentifier sid = new SecurityIdentifier(WellKnownSidType.AuthenticatedUserSid, null);
            SecurityIdentifier sid = new SecurityIdentifier(WellKnownSidType.BuiltinUsersSid, null);

            // Create the rules
            FileSystemAccessRule writerule1 = new FileSystemAccessRule(sid, FileSystemRights.Write, InheritanceFlags.ObjectInherit, PropagationFlags.InheritOnly, AccessControlType.Allow);
            FileSystemAccessRule writerule2 = new FileSystemAccessRule(sid, FileSystemRights.Write, InheritanceFlags.None, PropagationFlags.InheritOnly, AccessControlType.Allow);
            FileSystemAccessRule writerule3 = new FileSystemAccessRule(sid, FileSystemRights.Write, InheritanceFlags.ContainerInherit, PropagationFlags.InheritOnly, AccessControlType.Allow);

            if (!string.IsNullOrEmpty(folder) && Directory.Exists(folder))
            {
                // Get your file's ACL
                DirectorySecurity fsecurity = Directory.GetAccessControl(folder);
                fsecurity.PurgeAccessRules(sid);

                // Add the new rule to the ACL
                fsecurity.AddAccessRule(writerule1);
                fsecurity.AddAccessRule(writerule2);
                fsecurity.AddAccessRule(writerule3);

                // Set the ACL back to the file
                Directory.SetAccessControl(folder, fsecurity);
            }

            // Explicitly call the overriden method to properly return control to the installer
            base.Install(stateSaver);
        }

        /// <summary>
        /// Commit state.
        /// </summary>
        /// <param name="savedState">Saved state.</param>
        [System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand)]
        public override void Commit(IDictionary savedState)
        {
            base.Commit(savedState);

            // System.Diagnostics.Process.Start("http://www.microsoft.com");
        }

        /// <summary>
        /// Rollback transaction.
        /// </summary>
        /// <param name="savedState">Saved state.</param>
        [System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand)]
        public override void Rollback(IDictionary savedState)
        {
            base.Rollback(savedState);
        }

        /// <summary>
        /// Uninstall actions.
        /// </summary>
        /// <param name="savedState">Saved state.</param>
        [System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand)]
        public override void Uninstall(IDictionary savedState)
        {
            base.Uninstall(savedState);
        }
    }
}