1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include "shlxtmsi.hxx"
#include <malloc.h>
#include <assert.h>
namespace
{
// The provided GUID must be without surrounding '{}'
std::wstring GetGuidPart(const std::wstring& guid, int index)
{
assert((guid.length() == 36) && "No GUID or wrong format!");
assert(((index > -1) && (index < 5)) && "Out of range!");
if (index == 0) return std::wstring(guid.c_str(), 8);
if (index == 1) return std::wstring(guid.c_str() + 9, 4);
if (index == 2) return std::wstring(guid.c_str() + 14, 4);
if (index == 3) return std::wstring(guid.c_str() + 19, 4);
if (index == 4) return std::wstring(guid.c_str() + 24, 12);
return std::wstring();
}
void Swap(wchar_t* p1, wchar_t* p2)
{
wchar_t tmp = *p1;
*p1 = *p2;
*p2 = tmp;
}
std::wstring Invert(const std::wstring& str)
{
wchar_t* buff = static_cast<wchar_t*>(_alloca(str.length()*sizeof(wchar_t)));
wcsncpy(buff, str.c_str(), str.length());
wchar_t* front = buff;
wchar_t* back = buff + str.length() - 1;
while (front < back)
Swap(front++, back--);
return std::wstring(buff, str.length());
}
// Convert the upgrade code (which is a GUID) according
// to the way the windows installer does when writing it
// to the registry
// The first 8 bytes will be inverted, from the last
// 8 bytes always the nibbles will be inverted for further
// details look in the MSDN under compressed registry keys
std::wstring ConvertGuid(const std::wstring& guid)
{
std::wstring convertedGuid;
std::wstring part = GetGuidPart(guid, 0);
convertedGuid = Invert(part);
part = GetGuidPart(guid, 1);
convertedGuid += Invert(part);
part = GetGuidPart(guid, 2);
convertedGuid += Invert(part);
part = GetGuidPart(guid, 3);
convertedGuid += Invert(std::wstring(part.c_str(), 2));
convertedGuid += Invert(std::wstring(part.c_str() + 2, 2));
part = GetGuidPart(guid, 4);
int pos = 0;
for (int i = 0; i < 6; i++)
{
convertedGuid += Invert(std::wstring(part.c_str() + pos, 2));
pos += 2;
}
return convertedGuid;
}
bool IsSetMsiPropertyW(MSIHANDLE handle, const std::wstring& sProperty)
{
return (GetMsiPropertyW(handle, sProperty).length() > 0);
}
void SetMsiPropertyW(MSIHANDLE handle, const std::wstring& sProperty)
{
MsiSetPropertyW(handle, sProperty.c_str(), L"1");
}
bool RegistryKeyHasUpgradeSubKey(
HKEY hRootKey, const std::wstring& regKey, const std::wstring& upgradeKey)
{
HKEY hKey;
if (RegOpenKeyW(hRootKey, regKey.c_str(), &hKey) == ERROR_SUCCESS)
{
DWORD nSubKeys;
DWORD lLongestSubKey;
if (RegQueryInfoKeyW(
hKey, nullptr, nullptr, nullptr, &nSubKeys, &lLongestSubKey, nullptr, nullptr, nullptr, nullptr, nullptr, nullptr) == ERROR_SUCCESS)
{
LPWSTR buffer = static_cast<LPWSTR>(_alloca((lLongestSubKey + 1)*sizeof(WCHAR)));
for (DWORD i = 0; i < nSubKeys; i++)
{
LONG ret = RegEnumKeyW(hKey, i, buffer, lLongestSubKey + 1);
if ((ret == ERROR_SUCCESS) && (buffer == upgradeKey))
return true;
}
}
}
return false;
}
} // namespace
extern "C" __declspec(dllexport) UINT __stdcall SetProductInstallMode(MSIHANDLE handle)
{
std::wstring upgradeCode = GetMsiPropertyW(handle, L"UpgradeCode");
upgradeCode = ConvertGuid(std::wstring(upgradeCode.c_str() + 1, upgradeCode.length() - 2));
// MessageBoxW(NULL, upgradeCode.c_str(), "Debug", MB_OK);
if (RegistryKeyHasUpgradeSubKey(
HKEY_CURRENT_USER,
L"Software\\Microsoft\\Installer\\UpgradeCodes",
upgradeCode) && IsSetMsiPropertyW(handle, L"ALLUSERS"))
{
UnsetMsiPropertyW(handle, L"ALLUSERS");
// MessageBoxW(NULL, L"ALLUSERS removed", L"DEBUG", MB_OK);
}
else if (RegistryKeyHasUpgradeSubKey(
HKEY_LOCAL_MACHINE,
L"Software\\Classes\\Installer\\UpgradeCodes",
upgradeCode) && !IsSetMsiPropertyW(handle, L"ALLUSERS"))
{
SetMsiPropertyW(handle, L"ALLUSERS");
// MessageBoxW(NULL, L"ALLUSERS set", L"DEBUG", MB_OK);
}
return ERROR_SUCCESS;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
