1 | /* $Id: MsiHackExtension.cs 106061 2024-09-16 14:03:52Z vboxsync $ */
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2 | /** @file
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3 | * MsiHackExtension - Wix Extension that loads MsiHack.dll
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2016-2024 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * SPDX-License-Identifier: GPL-3.0-only
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26 | */
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27 |
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28 |
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29 | using Microsoft.Tools.WindowsInstallerXml;
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30 | using System; /* For Console. */
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31 | using System.Reflection; /* For Assembly*(). */
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32 | using System.Runtime.InteropServices; /* For DllImport. */
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33 | using System.IO; /* For Path. */
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34 |
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35 |
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36 |
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37 | [assembly: AssemblyTitle("org.virtualbox.wix.msi.speed.hack")]
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38 | [assembly: AssemblyDescription("Speeding up MSI.DLL")]
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39 | [assembly: AssemblyConfiguration("")]
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40 | [assembly: AssemblyCompany("Oracle Corporation")]
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41 | [assembly: AssemblyProduct("org.virtualbox.wix.msi.speed.hack")]
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42 | [assembly: AssemblyCopyright("Copyright (C) 2016")]
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43 | [assembly: AssemblyTrademark("")]
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44 | [assembly: AssemblyCulture("")]
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45 | [assembly: AssemblyDefaultWixExtension(typeof(MsiHackExtension))]
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46 |
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47 |
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48 | static class NativeMethods
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49 | {
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50 | [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
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51 | public static extern IntPtr LoadLibrary(string strPath);
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52 | }
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53 |
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54 |
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55 | public class MsiHackExtension : WixExtension
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56 | {
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57 | public MsiHackExtension()
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58 | {
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59 | /* Figure out where we are. */
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60 | string strCodeBase = Assembly.GetExecutingAssembly().CodeBase;
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61 | //Console.WriteLine("MsiHackExtension: strCodeBase={0}", strCodeBase);
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62 |
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63 | UriBuilder uri = new UriBuilder(strCodeBase);
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64 | string strPath = Uri.UnescapeDataString(uri.Path);
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65 | //Console.WriteLine("MsiHackExtension: strPath={0}", strPath);
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66 |
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67 | string strDir = Path.GetDirectoryName(strPath);
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68 | //Console.WriteLine("MsiHackExtension: strDir={0}", strDir);
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69 |
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70 | string strHackDll = strDir + "\\MsiHack.dll";
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71 | //Console.WriteLine("strHackDll={0}", strHackDll);
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72 |
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73 | try
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74 | {
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75 | IntPtr hHackDll = NativeMethods.LoadLibrary(strHackDll);
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76 | Console.WriteLine("MsiHackExtension: Loaded {0} at {1}!", strHackDll, hHackDll.ToString("X"));
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77 | }
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78 | catch (Exception Xcpt)
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79 | {
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80 | Console.WriteLine("MsiHackExtension: Exception loading {0}: {1}", strHackDll, Xcpt);
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81 | }
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82 | }
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83 | }
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84 |
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