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
|
/*
Mod Organizer archive handling
Copyright (C) 2012 Sebastian Herbord, 2020 MO2 Team. All rights reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "opencallback.h"
#include "compat.h"
#include "inputstream.h"
#include "propertyvariant.h"
#include <format>
#include <memory>
#include <stdexcept>
#include <string>
#include <vector>
#include "fileio.h"
#define UNUSED(x)
CArchiveOpenCallback::CArchiveOpenCallback(Archive::PasswordCallback passwordCallback,
Archive::LogCallback logCallback,
std::filesystem::path const& filepath)
: m_PasswordCallback(passwordCallback), m_LogCallback(logCallback),
m_Path(filepath), m_SubArchiveMode(false)
{
if (!exists(filepath)) {
throw std::runtime_error("invalid archive path");
}
if (!IO::FileBase::GetFileInformation(filepath, &m_FileInfo)) {
throw std::runtime_error("failed to retrieve file information");
}
}
/* -------------------- IArchiveOpenCallback -------------------- */
STDMETHODIMP CArchiveOpenCallback::SetTotal(const UInt64* UNUSED(files),
const UInt64* UNUSED(bytes)) throw()
{
return S_OK;
}
STDMETHODIMP CArchiveOpenCallback::SetCompleted(const UInt64* UNUSED(files),
const UInt64* UNUSED(bytes)) throw()
{
return S_OK;
}
/* -------------------- ICryptoGetTextPassword -------------------- */
/* This apparently implements ICryptoGetTextPassword but even with a passworded
* archive it doesn't seem to be called. There is also another API which isn't
* implemented.
*/
STDMETHODIMP CArchiveOpenCallback::CryptoGetTextPassword(BSTR* passwordOut) throw()
{
if (!m_PasswordCallback) {
return E_ABORT;
}
m_Password = m_PasswordCallback();
*passwordOut = ::SysAllocString(m_Password.c_str());
return *passwordOut != 0 ? S_OK : E_OUTOFMEMORY;
}
/* -------------------- IArchiveOpenSetSubArchiveName -------------------- */
/* I don't know what this does or how you call it. */
STDMETHODIMP CArchiveOpenCallback::SetSubArchiveName(const wchar_t* name) throw()
{
m_SubArchiveMode = true;
m_SubArchiveName = name;
return S_OK;
}
/* -------------------- IArchiveOpenVolumeCallback -------------------- */
STDMETHODIMP CArchiveOpenCallback::GetProperty(PROPID propID,
PROPVARIANT* value) throw()
{
// A scan of the source code indicates that the only things that ever call the
// IArchiveOpenVolumeCallback interface ask for the file name and size.
PropertyVariant& prop = *static_cast<PropertyVariant*>(value);
switch (propID) {
case kpidName: {
if (m_SubArchiveMode) {
prop = m_SubArchiveName;
} else {
// Note: Need to call .native(), otherwize we get a link error because we try to
// assign a fs::path to the variant.
prop = m_Path.filename().wstring();
}
} break;
case kpidIsDir:
prop = m_FileInfo.isDir();
break;
case kpidSize:
prop = m_FileInfo.fileSize();
break;
case kpidAttrib:
prop = m_FileInfo.fileAttributes();
break;
case kpidCTime:
prop = m_FileInfo.creationTime();
break;
case kpidATime:
prop = m_FileInfo.lastAccessTime();
break;
case kpidMTime:
prop = m_FileInfo.lastWriteTime();
break;
default:
m_LogCallback(Archive::LogLevel::Warning,
std::format(L"Unexpected property {}.", propID));
}
return S_OK;
}
STDMETHODIMP CArchiveOpenCallback::GetStream(const wchar_t* name,
IInStream** inStream) throw()
{
*inStream = nullptr;
// this function will be called repeatedly for split archives, `name` will
// have increasing numbers in the extension and S_FALSE must be returned
// when a filename doesn't exist so the search stops
if (!name) {
return S_FALSE;
}
// `name` is just the filename, so build a path from the directory that
// contained the last file
const auto path = m_Path.parent_path() / name;
if (!exists(m_FileInfo.path()) || m_FileInfo.isDir()) {
return S_FALSE;
}
if (!IO::FileBase::GetFileInformation(path, &m_FileInfo)) {
return S_FALSE;
}
CComPtr<InputStream> inFile(new InputStream);
if (!inFile->Open(m_FileInfo.path())) {
return ::GetLastError();
}
*inStream = inFile.Detach();
return S_OK;
}
|
