mirror of
https://github.com/chibicitiberiu/rainmeter-studio.git
synced 2024-02-24 04:33:31 +00:00
148 lines
3.6 KiB
C++
148 lines
3.6 KiB
C++
/*
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Copyright (C) 2013 Birunthan Mohanathas
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "StdAfx.h"
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#include "Install.h"
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#include "Resource.h"
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extern "C" {
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#include "lzma/Alloc.h"
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#include "lzma/7zFile.h"
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#include "lzma/7zVersion.h"
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#include "lzma/LzmaDec.h"
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#include "lzma/7zCrc.h"
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#include "lzma/7z.h"
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#include "lzma/7zMemInStream.h"
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#include "lzma/7zAlloc.h"
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} // extern "C"
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void ExtractPayload(const void* payload, size_t payloadSize, const WCHAR* prefix)
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{
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CMemInStream memStream;
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MemInStream_Init(&memStream, payload, payloadSize);
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CrcGenerateTable();
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ISzAlloc alloc = { SzAlloc, SzFree };
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CSzArEx db;
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SzArEx_Init(&db);
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SRes res = SzArEx_Open(&db, &memStream.s, &alloc, &alloc);
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if (res != SZ_OK)
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{
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SzArEx_Free(&db, &alloc);
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return;
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}
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WCHAR buffer[MAX_PATH];
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UInt32 blockIndex = 0xFFFFFFFF;
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Byte* outBuffer = 0;
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size_t outBufferSize = 0;
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for (UInt32 i = 0; i < db.db.NumFiles; i++)
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{
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size_t offset = 0;
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size_t outSizeProcessed = 0;
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const CSzFileItem* f = db.db.Files + i;
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SzArEx_GetFileNameUtf16(&db, i, (UInt16*)buffer);
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WCHAR* destPath = buffer;
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if (wcsncmp(destPath, prefix, 3) == 0 ||
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wcsncmp(destPath, L"ALL", 3) == 0)
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{
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// Skip the prefix (X64/X32/ALL) and the path separater.
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destPath += 4;
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}
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else
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{
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// This file isn't for this arch.
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continue;
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}
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if (!f->IsDir)
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{
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res = SzArEx_Extract(
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&db, &memStream.s, i, &blockIndex, &outBuffer, &outBufferSize, &offset,
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&outSizeProcessed, &alloc, &alloc);
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if (res != SZ_OK)
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{
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break;
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}
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}
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for (size_t j = 0; destPath[j] != L'\0'; ++j)
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{
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if (destPath[j] == L'/')
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{
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destPath[j] = L'\0';
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CreateDirectory(destPath, NULL);
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destPath[j] = CHAR_PATH_SEPARATOR;
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}
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}
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if (f->IsDir)
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{
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CreateDirectory(destPath, NULL);
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continue;
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}
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CSzFile outFile;
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if (OutFile_OpenW(&outFile, destPath))
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{
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res = SZ_ERROR_FAIL;
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break;
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}
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size_t processedSize = outSizeProcessed;
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if (File_Write(&outFile, outBuffer + offset, &processedSize) != 0 ||
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processedSize != outSizeProcessed)
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{
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res = SZ_ERROR_FAIL;
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break;
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}
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if (File_Close(&outFile))
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{
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res = SZ_ERROR_FAIL;
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break;
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}
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if (f->AttribDefined) SetFileAttributesW(destPath, f->Attrib);
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}
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IAlloc_Free(&alloc, outBuffer);
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SzArEx_Free(&db, &alloc);
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if (res == SZ_OK)
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{
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// Success.
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}
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}
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void DoInstall(InstallOptions& options)
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{
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#ifdef INSTALLER_INCLUDE_PAYLOAD
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const auto module = GetModuleHandle(nullptr);
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HRSRC payload = FindResource(
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module, MAKEINTRESOURCE(IDR_PAYLOAD), MAKEINTRESOURCE(PAYLOAD_RESOURCE_TYPEID));
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const size_t payloadSize = SizeofResource(module, payload);
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const void* payloadData = LockResource(LoadResource(module, payload));
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SetCurrentDirectory(options.targetPath);
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ExtractPayload(
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payloadData, payloadSize, options.arch == InstallArch::X32 ? L"X32" : L"X64");
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#endif
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}
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