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/*
Copyright (C) 2012 George Hazan
This is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this file; see the file license.txt. If
not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include "stdafx.h"
#define DATA_BUF_SIZE (4 * 1024 * 1024)
static LIST<char> sttMasks(100);
static int sttEnumProc(const char *szSetting, void *)
{
if (1 != db_get_b(0, DB_MODULE_FILES, szSetting, 1))
sttMasks.insert(mir_strdup(szSetting));
return 0;
}
static bool IsFilteredFile(const char *szFileName)
{
char *tmp = NEWSTR_ALLOCA(szFileName);
_strlwr(tmp);
for (auto &it: sttMasks)
if (wildcmp(tmp, it))
return true;
return false;
}
void InitMasks()
{
db_enum_settings(0, sttEnumProc, DB_MODULE_FILES);
}
void UninitMasks()
{
for (auto &it : sttMasks)
mir_free(it);
sttMasks.destroy();
}
static void PrepareFileName(wchar_t *dest, size_t destSize, const wchar_t *pwszPath, const wchar_t *pwszFileName)
{
mir_snwprintf(dest, destSize, L"%s\\%s", pwszPath, pwszFileName);
for (wchar_t *p = dest; *p; ++p)
if (*p == '/')
*p = '\\';
}
int extractCurrentFile(unzFile uf, wchar_t *pwszDestPath, wchar_t *pwszBackPath, bool bCheckFilter)
{
unz_file_info64 file_info;
char filename[MAX_PATH];
mir_ptr<char> buf((char *)mir_alloc(DATA_BUF_SIZE+1));
int err = unzGetCurrentFileInfo64(uf, &file_info, filename, sizeof(filename), buf, DATA_BUF_SIZE, nullptr, 0);
if (err != UNZ_OK)
return err;
for (char *p = strchr(filename, '/'); p; p = strchr(p + 1, '/'))
*p = '\\';
// This is because there may be more then one file in a single zip
// So we need to check each file
if (bCheckFilter && IsFilteredFile(filename))
return UNZ_OK;
TFileName wszDestFile, wszBackFile;
ptrW pwszNewName(mir_utf8decodeW(filename));
if (pwszNewName == nullptr)
pwszNewName = mir_a2u(filename);
if (!(file_info.external_fa & FILE_ATTRIBUTE_DIRECTORY)) {
err = unzOpenCurrentFile(uf);
if (err != UNZ_OK)
return err;
if (pwszBackPath != nullptr) {
PrepareFileName(wszDestFile, _countof(wszDestFile), pwszDestPath, pwszNewName);
PrepareFileName(wszBackFile, _countof(wszBackFile), pwszBackPath, pwszNewName);
if (err = BackupFile(wszDestFile, wszBackFile))
return err;
}
PrepareFileName(wszDestFile, _countof(wszDestFile), pwszDestPath, pwszNewName);
PU::SafeCreateFilePath(wszDestFile);
wchar_t *pwszFile2unzip;
if (PU::IsDirect())
pwszFile2unzip = wszDestFile;
else {
TFileName wszTempPath;
GetTempPathW(_countof(wszTempPath), wszTempPath);
GetTempFileNameW(wszTempPath, L"PUtemp", GetCurrentProcessId(), wszBackFile);
pwszFile2unzip = wszBackFile;
}
HANDLE hFile = CreateFile(pwszFile2unzip, GENERIC_WRITE, FILE_SHARE_WRITE, nullptr, CREATE_ALWAYS, file_info.external_fa, nullptr);
if (hFile == INVALID_HANDLE_VALUE)
return GetLastError();
while (true) {
err = unzReadCurrentFile(uf, buf, DATA_BUF_SIZE);
if (err <= 0)
break;
DWORD bytes;
if (!WriteFile(hFile, buf, err, &bytes, FALSE)) {
err = GetLastError();
break;
}
}
FILETIME ftLocal, ftCreate, ftLastAcc, ftLastWrite;
GetFileTime(hFile, &ftCreate, &ftLastAcc, &ftLastWrite);
DosDateTimeToFileTime(HIWORD(file_info.dosDate), LOWORD(file_info.dosDate), &ftLocal);
LocalFileTimeToFileTime(&ftLocal, &ftLastWrite);
SetFileTime(hFile, &ftCreate, &ftLastAcc, &ftLastWrite);
CloseHandle(hFile);
unzCloseCurrentFile(uf); /* don't lose the error */
if (!PU::IsDirect())
PU::SafeMoveFile(pwszFile2unzip, wszDestFile);
}
return err;
}
int unzip(const wchar_t *pwszZipFile, wchar_t *pwszDestPath, wchar_t *pwszBackPath, bool ch)
{
int iErrorCode = 0;
zlib_filefunc64_def ffunc;
fill_fopen64_filefunc(&ffunc);
unzFile uf = unzOpen2_64(pwszZipFile, &ffunc);
if (uf) {
do {
if (int err = extractCurrentFile(uf, pwszDestPath, pwszBackPath, ch))
iErrorCode = err;
}
while (unzGoToNextFile(uf) == UNZ_OK);
unzClose(uf);
}
return iErrorCode;
}
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