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
181
182
183
184
185
186
187
|
/* $Id: com.cpp $ */
/** @file
* MS COM / XPCOM Abstraction Layer
*/
/*
* Copyright (C) 2005-2022 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* 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, in version 3 of the
* License.
*
* 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 <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#define LOG_GROUP LOG_GROUP_MAIN
#if !defined(VBOX_WITH_XPCOM)
# include <iprt/win/objbase.h>
#else /* !defined (VBOX_WITH_XPCOM) */
# include <stdlib.h>
# include <nsCOMPtr.h>
# include <nsIServiceManagerUtils.h>
# include <nsIComponentManager.h>
# include <ipcIService.h>
# include <ipcCID.h>
# include <ipcIDConnectService.h>
# include <nsIInterfaceInfo.h>
# include <nsIInterfaceInfoManager.h>
# define IPC_DCONNECTSERVICE_CONTRACTID "@mozilla.org/ipc/dconnect-service;1" // official XPCOM headers don't define it yet
#endif /* !defined (VBOX_WITH_XPCOM) */
#include "VBox/com/com.h"
#include "VBox/com/assert.h"
#include "VBox/com/Guid.h"
#include "VBox/com/array.h"
#include <iprt/string.h>
#include <iprt/errcore.h>
#include <VBox/log.h>
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
namespace com
{
/* static */
const Guid Guid::Empty; /* default ctor is OK */
const char Zeroes[16] = {0, };
void GetInterfaceNameByIID(const GUID &aIID, BSTR *aName)
{
AssertPtrReturnVoid(aName);
*aName = NULL;
#if !defined(VBOX_WITH_XPCOM)
LONG rc;
LPOLESTR iidStr = NULL;
if (StringFromIID(aIID, &iidStr) == S_OK)
{
HKEY ifaceKey;
rc = RegOpenKeyExW(HKEY_CLASSES_ROOT, L"Interface",
0, KEY_QUERY_VALUE, &ifaceKey);
if (rc == ERROR_SUCCESS)
{
HKEY iidKey;
rc = RegOpenKeyExW(ifaceKey, iidStr, 0, KEY_QUERY_VALUE, &iidKey);
if (rc == ERROR_SUCCESS)
{
/* determine the size and type */
DWORD sz, type;
rc = RegQueryValueExW(iidKey, NULL, NULL, &type, NULL, &sz);
if (rc == ERROR_SUCCESS && type == REG_SZ)
{
/* query the value to BSTR */
*aName = SysAllocStringLen(NULL, (sz + 1) / sizeof(TCHAR) + 1);
rc = RegQueryValueExW(iidKey, NULL, NULL, NULL, (LPBYTE) *aName, &sz);
if (rc != ERROR_SUCCESS)
{
SysFreeString(*aName);
*aName = NULL;
}
}
RegCloseKey(iidKey);
}
RegCloseKey(ifaceKey);
}
CoTaskMemFree(iidStr);
}
#else /* !defined (VBOX_WITH_XPCOM) */
nsresult rv;
nsCOMPtr<nsIInterfaceInfoManager> iim =
do_GetService(NS_INTERFACEINFOMANAGER_SERVICE_CONTRACTID, &rv);
if (NS_SUCCEEDED(rv))
{
nsCOMPtr<nsIInterfaceInfo> iinfo;
rv = iim->GetInfoForIID(&aIID, getter_AddRefs(iinfo));
if (NS_SUCCEEDED(rv))
{
const char *iname = NULL;
iinfo->GetNameShared(&iname);
char *utf8IName = NULL;
if (RT_SUCCESS(RTStrCurrentCPToUtf8(&utf8IName, iname)))
{
PRTUTF16 utf16IName = NULL;
if (RT_SUCCESS(RTStrToUtf16(utf8IName, &utf16IName)))
{
*aName = SysAllocString((OLECHAR *) utf16IName);
RTUtf16Free(utf16IName);
}
RTStrFree(utf8IName);
}
}
}
#endif /* !defined (VBOX_WITH_XPCOM) */
}
#ifdef VBOX_WITH_XPCOM
HRESULT GlueCreateObjectOnServer(const CLSID &clsid,
const char *serverName,
const nsIID &id,
void** ppobj)
{
HRESULT rc;
nsCOMPtr<ipcIService> ipcServ = do_GetService(IPC_SERVICE_CONTRACTID, &rc);
if (SUCCEEDED(rc))
{
PRUint32 serverID = 0;
rc = ipcServ->ResolveClientName(serverName, &serverID);
if (SUCCEEDED (rc))
{
nsCOMPtr<ipcIDConnectService> dconServ = do_GetService(IPC_DCONNECTSERVICE_CONTRACTID, &rc);
if (SUCCEEDED(rc))
rc = dconServ->CreateInstance(serverID,
clsid,
id,
ppobj);
}
}
return rc;
}
HRESULT GlueCreateInstance(const CLSID &clsid,
const nsIID &id,
void** ppobj)
{
nsCOMPtr<nsIComponentManager> manager;
HRESULT rc = NS_GetComponentManager(getter_AddRefs(manager));
if (SUCCEEDED(rc))
rc = manager->CreateInstance(clsid,
nsnull,
id,
ppobj);
return rc;
}
#endif // VBOX_WITH_XPCOM
} /* namespace com */
|
