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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/* -*- 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/.
*/
// Include MIDL-generated file
#if defined __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wextra-tokens"
// "#endif !_MIDL_USE_GUIDDEF_" in midl-generated code
#endif
#include <spsupp_i.c>
#if defined __clang__
#pragma clang diagnostic pop
#endif
#include <memory>
#include <olectl.h>
#include <wchar.h>
#include <spsuppServ.hpp>
#include <spsuppClassFactory.hpp>
#include <COMOpenDocuments.hpp>
#include <registrar.hpp>
#include <shlwapi.h> // declaration of DllInstall
namespace
{
HANDLE g_hModule;
HMODULE GetHModule() { return static_cast<HMODULE>(g_hModule); }
} // namespace
ITypeLib* GetTypeLib()
{
typedef std::unique_ptr<ITypeLib, void(*)(IUnknown* p)> ITypeLibGuard;
static ITypeLibGuard s_aITypeLibGuard = [] {
ITypeLibGuard aITypeLibGuard(nullptr, [](IUnknown* p) { if (p) p->Release(); });
wchar_t szFile[MAX_PATH];
if (GetModuleFileNameW(GetHModule(), szFile, MAX_PATH) == 0)
return aITypeLibGuard;
ITypeLib* pTypeLib;
if (FAILED(LoadTypeLib(szFile, &pTypeLib)))
return aITypeLibGuard;
aITypeLibGuard.reset(pTypeLib);
return aITypeLibGuard;
}();
return s_aITypeLibGuard.get();
}
const wchar_t* GetHelperExe()
{
static wchar_t* s_sPath = []() -> wchar_t* {
static wchar_t sPath[MAX_PATH];
if (GetModuleFileNameW(GetHModule(), sPath, MAX_PATH) == 0)
return nullptr;
wchar_t* pSlashPos = wcsrchr(sPath, L'\\');
if (pSlashPos == nullptr)
return nullptr;
wcscpy(pSlashPos + 1, L"spsupp_helper.exe");
return sPath;
}();
return s_sPath;
}
BOOL APIENTRY DllMain( HANDLE hinstDLL,
DWORD fdwReason,
LPVOID /*lpvReserved*/ )
{
switch (fdwReason)
{
case DLL_PROCESS_ATTACH:
g_hModule = hinstDLL;
break;
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}
namespace {
// {F1924D0C-9B35-4A46-BCDE-CFEF2CE67A17}
static const IID CLSID_spsupp =
{ 0xf1924d0c, 0x9b35, 0x4a46, { 0xbc, 0xde, 0xcf, 0xef, 0x2c, 0xe6, 0x7a, 0x17 } };
}
STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppvOut)
{
*ppvOut = nullptr;
if (IsEqualIID(rclsid, CLSID_spsupp))
{
ClassFactory *pCf = new ClassFactory;
HRESULT hr = pCf->QueryInterface(riid, ppvOut);
pCf->Release();
return hr;
}
return CLASS_E_CLASSNOTAVAILABLE;
}
STDAPI DllCanUnloadNow(void)
{
if (ClassFactory::GetLockCount() == 0 &&
ClassFactory::GetObjectCount() == 0 &&
COMOpenDocuments::GetObjectCount() == 0)
return S_OK;
else
return S_FALSE;
}
STDAPI DllRegisterServer(void)
{
ITypeLib* pTypeLib = GetTypeLib();
if (!pTypeLib)
return ResultFromScode(SELFREG_E_TYPELIB);
wchar_t szFile[MAX_PATH];
if (GetModuleFileNameW(GetHModule(), szFile, MAX_PATH) == 0)
return HRESULT_FROM_WIN32(GetLastError());
HRESULT hr = RegisterTypeLib(pTypeLib, szFile, nullptr);
if (FAILED(hr))
return hr;
// Default is v.5
return Registrar(CLSID_spsupp)
.RegisterObject(LIBID_spsupp, L"LOSPSupport", L"OpenDocuments", { 5, 1, 2, 3, 4 }, szFile);
}
STDAPI DllUnregisterServer(void)
{
ITypeLib* pTypeLib = GetTypeLib();
if (!pTypeLib)
return ResultFromScode(SELFREG_E_TYPELIB);
TLIBATTR* pLibAttr;
HRESULT hr = pTypeLib->GetLibAttr(&pLibAttr);
if (FAILED(hr))
return hr;
auto ReleaseFunc = [pTypeLib](TLIBATTR* p) { if (p) pTypeLib->ReleaseTLibAttr(p); };
typedef std::unique_ptr<TLIBATTR, decltype(ReleaseFunc)> TLIBATTRGuard;
static TLIBATTRGuard aTLIBATTRGuard(nullptr, ReleaseFunc);
hr = UnRegisterTypeLib(pLibAttr->guid, pLibAttr->wMajorVerNum, pLibAttr->wMinorVerNum, pLibAttr->lcid, pLibAttr->syskind);
if (FAILED(hr))
return hr;
return Registrar(CLSID_spsupp)
.UnRegisterObject(L"LOSPSupport", L"OpenDocuments", { 1, 2, 3, 4, 5 });
}
// This is called when regsvr32.exe is called with "/i" flag
// pszCmdLine is the string passed to "/i:<string>"
// See https://msdn.microsoft.com/library/windows/desktop/bb759846
STDAPI DllInstall(BOOL bInstall, _In_opt_ PCWSTR pszCmdLine)
{
if (wcscmp(pszCmdLine, L"Substitute_OWSSUPP") == 0)
{
HRESULT hr;
Registrar registrar(CLSID_spsupp);
if (bInstall)
{
// Default is v.5
hr = registrar.RegisterProgIDs(L"SharePoint", L"OpenDocuments", { 5, 1, 2, 3, 4 });
}
else
{
hr = registrar.UnRegisterProgIDs(L"SharePoint", L"OpenDocuments", { 1, 2, 3, 4, 5 });
}
return hr;
}
return E_INVALIDARG;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
