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
|
/*
Mod Organizer BSA handling
Copyright (C) 2012 Sebastian Herbord. 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 "bsafile.h"
#include <algorithm>
#include <climits>
#include <cstring>
#include <memory>
#include <stdexcept>
#include "bsaexception.h"
#include "bsafolder.h"
#include "filehash.h"
using std::fstream;
using std::ifstream;
using std::ofstream;
namespace BSA
{
bool ByOffset(const File::Ptr& LHS, const File::Ptr& RHS)
{
return LHS->getDataOffset() < RHS->getDataOffset();
}
static const BSAULong CHUNK_SIZE = 128 * 1024;
File::File(std::fstream& file, Folder* folder)
: m_Folder(folder), m_New(false), m_FileSize(0), m_UncompressedFileSize(0),
m_ToggleCompressedWrite(false), m_DataOffsetWrite(0)
{
m_NameHash = readType<BSAHash>(file);
m_FileSize = readType<BSAULong>(file);
m_DataOffset = readType<BSAULong>(file);
m_ToggleCompressed = m_FileSize & COMPRESSMASK;
m_FileSize = m_FileSize & SIZEMASK;
}
File::File(const std::string& name, Folder* folder, BSAULong fileSize,
BSAHash dataOffset, BSAULong uncompressedFileSize, FO4TextureHeader header,
std::vector<FO4TextureChunk>& texChunks)
: m_Folder(folder), m_New(false), m_Name(name), m_FileSize(fileSize),
m_UncompressedFileSize(uncompressedFileSize), m_DataOffset(dataOffset),
m_TextureHeader(header), m_ToggleCompressedWrite(false),
m_TextureChunks(texChunks), m_DataOffsetWrite(0)
{
m_NameHash = calculateBSAHash(name);
m_ToggleCompressed = false;
if (m_FileSize > 0 && m_UncompressedFileSize > 0)
m_ToggleCompressed = true;
}
File::File(const std::string& name, const std::string& sourceFile, Folder* folder,
bool toggleCompressed)
: m_Folder(folder), m_New(true), m_Name(name), m_FileSize(0),
m_UncompressedFileSize(0), m_DataOffset(0), m_ToggleCompressed(toggleCompressed),
m_SourceFile(sourceFile), m_ToggleCompressedWrite(toggleCompressed),
m_DataOffsetWrite(0)
{
m_NameHash = calculateBSAHash(name);
}
std::string File::getFilePath() const
{
return m_Folder->getFullPath() + "/" + m_Name;
}
void File::writeHeader(fstream& file) const
{
writeType<BSAHash>(file, m_NameHash);
BSAULong size = m_FileSize;
if (m_ToggleCompressed) {
size |= (1 << 30);
}
writeType<BSAULong>(file, size);
writeType<BSAULong>(file, m_DataOffsetWrite);
}
EErrorCode File::writeData(fstream& sourceArchive, fstream& targetArchive) const
{
m_DataOffsetWrite = static_cast<BSAULong>(targetArchive.tellp());
EErrorCode result = ERROR_NONE;
std::unique_ptr<char[]> inBuffer(new char[CHUNK_SIZE]);
if (m_SourceFile.length() == 0) {
// copy from source archive
sourceArchive.seekg(m_DataOffset, fstream::beg);
try {
BSAULong sizeLeft = m_FileSize;
while (sizeLeft > 0) {
int chunkSize = (std::min)(sizeLeft, CHUNK_SIZE);
sourceArchive.read(inBuffer.get(), chunkSize);
targetArchive.write(inBuffer.get(), chunkSize);
sizeLeft -= chunkSize;
}
} catch (const std::exception&) {
result = ERROR_INVALIDDATA;
}
} else {
// copy from file on disc
fstream sourceFile;
sourceFile.open(m_SourceFile.c_str());
if (!sourceFile.is_open()) {
return ERROR_SOURCEFILEMISSING;
}
sourceFile.seekg(0, fstream::end);
m_FileSize = static_cast<BSAULong>(sourceFile.tellg());
BSAULong sizeLeft = m_FileSize;
sourceFile.seekg(0, fstream::beg);
while (sizeLeft > 0) {
int chunkSize = (std::min)(sizeLeft, CHUNK_SIZE);
sourceFile.read(inBuffer.get(), chunkSize);
targetArchive.write(inBuffer.get(), chunkSize);
sizeLeft -= chunkSize;
}
}
return result;
}
void File::readFileName(fstream& file, bool testHashes)
{
m_Name = readZString(file);
if (testHashes) {
if (calculateBSAHash(m_Name) != m_NameHash) {
throw data_invalid_exception(
makeString("invalid name hash for \"%s\" (%lx vs %lx)", m_Name.c_str(),
calculateBSAHash(m_Name), m_NameHash));
}
}
}
} // namespace BSA
|
