QByteArray uncompress( const QByteArray& data )
{
if ( data.size()>2 && (data.at(0) != gz_magic_0 || data.at(1) != gz_magic_1) )
{
qWarning( "gz: data to be uncompressed doesn't look like gzip format" );
}
return uncompress_( reinterpret_cast<const uchar*>( data.constData() ), data.size() );
}
KDvoid AssetsManager::update ( KDvoid )
{
// 1. Urls of package and version should be valid;
// 2. Package should be a zip file.
if ( m_sVersionFileUrl.size ( ) == 0 ||
m_sPackageUrl.size ( ) == 0 ||
std::string::npos == m_sPackageUrl.find ( ".zip" ) )
{
CCLOG ( "no version file url, or no package url, or the package is not a zip file" );
return;
}
// Check if there is a new version.
if ( !checkUpdate ( ) )
{
return;
}
// Is package already downloaded?
std::string sDownloadedVersion = CCUserDefault::sharedUserDefault ( )->getStringForKey ( KEY_OF_DOWNLOADED_VERSION );
if ( sDownloadedVersion != m_sVersion )
{
if ( !downLoad ( ) )
{
return;
}
// Record downloaded version.
CCUserDefault::sharedUserDefault ( )->setStringForKey ( KEY_OF_DOWNLOADED_VERSION, m_sVersion.c_str ( ) );
CCUserDefault::sharedUserDefault ( )->flush ( );
}
// Uncompress zip file.
if ( !uncompress_ ( ) )
{
return;
}
// Record new version code.
CCUserDefault::sharedUserDefault ( )->setStringForKey ( KEY_OF_VERSION, m_sVersion.c_str ( ) );
// Unrecord downloaded version code.
CCUserDefault::sharedUserDefault ( )->setStringForKey ( KEY_OF_DOWNLOADED_VERSION, "" );
CCUserDefault::sharedUserDefault ( )->flush ( );
// Set resource search path.
setSearchPath ( );
// Delete unloaded zip file.
std::string sZipfileName = m_sStoragePath + TEMP_PACKAGE_FILE_NAME;
if ( kdRemove ( sZipfileName.c_str ( ) ) != 0 )
{
CCLOG ( "can not remove downloaded zip file" );
}
}