//--------------------------------------------------------------
//--------------------------------------------------------------
u32 FileSystem::GetFileChecksumCRC32(StorageLocation in_storageLocation, const std::string& in_filePath) const
{
u32 output = 0;
//open the file
FileStreamUPtr file = CreateFileStream(in_storageLocation, in_filePath, FileMode::k_readBinary);
if (file != nullptr)
{
//get the length of the file
file->SeekG(0, SeekDir::k_end);
s32 length = file->TellG();
file->SeekG(0, SeekDir::k_beginning);
//read contents of file
s8* contents = new s8[length];
file->Read(contents, length);
//get the hash
output = HashCRC32::GenerateHashCode(contents, length);
CS_SAFEDELETE_ARRAY(contents);
}
return output;
}
//--------------------------------------------------------------
//--------------------------------------------------------------
void GooglePlayExpansionSystem::Unzip(const std::string& instrZipPath, Json::Value& outjManifest)
{
CSCore::Application::Get()->GetFileSystem()->CreateDirectoryPath(CSCore::StorageLocation::k_DLC, "");
unzFile ZippedFile = unzOpen(instrZipPath.c_str());
unz_global_info pInfo;
unzGetGlobalInfo(ZippedFile, &pInfo);
s32 dwTotalNumEntries = pInfo.number_entry;
s32 dwCurrentEntry = 1;
if(ZippedFile)
{
s32 dwStatus = unzGoToFirstFile(ZippedFile);
u32 udwBufferSize = 0;
s8* pbyDataBuffer = nullptr;
//Go to the first file in the zip
const u64 uddwFilenameLength = 256;
s8 byaFileName[uddwFilenameLength];
while(dwStatus == UNZ_OK)
{
//Open the next file
if (unzOpenCurrentFile(ZippedFile) != UNZ_OK)
break;
//Get file information
unz_file_info FileInfo;
unzGetCurrentFileInfo(ZippedFile, &FileInfo, byaFileName, uddwFilenameLength, 0, 0, 0, 0);
//Load the file into memory and then save it out to the directory
if(FileInfo.uncompressed_size > udwBufferSize)
{
udwBufferSize = FileInfo.uncompressed_size;
CS_SAFEDELETE_ARRAY(pbyDataBuffer);
pbyDataBuffer = new s8[udwBufferSize];
}
unzReadCurrentFile(ZippedFile, pbyDataBuffer, FileInfo.uncompressed_size);
std::string strFilePath = std::string(byaFileName);
Json::Value jManifestEntry;
if(ContainsDirectoryPath(strFilePath))
{
//There is a nested folder so we need to create the directory structure
jManifestEntry["IsDirectory"] = true;
jManifestEntry["Path"] = GetRootFolderExcludingPath(strFilePath);
std::string strPath = GetPathExcludingFileName(strFilePath);
CSCore::Application::Get()->GetFileSystem()->CreateDirectoryPath(CSCore::StorageLocation::k_DLC, "/" + strPath);
}
else
{
//This is just a file
jManifestEntry["IsDirectory"] = false;
jManifestEntry["Path"] = GetFileNameExcludingPath(strFilePath);
}
if(IsFile(strFilePath))
{
CSCore::Application::Get()->GetFileSystem()->WriteFile(CSCore::StorageLocation::k_DLC, "/" + strFilePath, pbyDataBuffer, FileInfo.uncompressed_size);
}
outjManifest.append(jManifestEntry);
unzCloseCurrentFile(ZippedFile);
dwStatus = unzGoToNextFile(ZippedFile);
m_installProgress = (f32)dwCurrentEntry / (f32)dwTotalNumEntries;
dwCurrentEntry++;
}
CS_SAFEDELETE_ARRAY(pbyDataBuffer);
}
}
