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173 lines
3.2 KiB
C++
173 lines
3.2 KiB
C++
/*
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* unarchiver.cpp
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* --------------
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* Purpose: archive loader
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* Notes : (currently none)
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* Authors: OpenMPT Devs
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* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
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*/
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#include "stdafx.h"
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#include "unarchiver.h"
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#include "../common/FileReader.h"
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OPENMPT_NAMESPACE_BEGIN
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CUnarchiver::CUnarchiver(FileReader &file)
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: impl(nullptr)
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, inFile(file)
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, emptyArchive(inFile)
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#if (defined(MPT_WITH_ZLIB) && defined(MPT_WITH_MINIZIP)) || defined(MPT_WITH_MINIZ)
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, zipArchive(inFile)
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#endif
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#ifdef MPT_WITH_LHASA
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, lhaArchive(inFile)
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#endif
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#if defined(MPT_WITH_ZLIB) || defined(MPT_WITH_MINIZ)
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, gzipArchive(inFile)
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#endif
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#ifdef MPT_WITH_UNRAR
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, rarArchive(inFile)
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#endif
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#ifdef MPT_WITH_ANCIENT
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, ancientArchive(inFile)
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#endif
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{
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inFile.Rewind();
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#if (defined(MPT_WITH_ZLIB) && defined(MPT_WITH_MINIZIP)) || defined(MPT_WITH_MINIZ)
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if(zipArchive.IsArchive()) { impl = &zipArchive; return; }
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#endif
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#ifdef MPT_WITH_LHASA
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if(lhaArchive.IsArchive()) { impl = &lhaArchive; return; }
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#endif
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#if defined(MPT_WITH_ZLIB) || defined(MPT_WITH_MINIZ)
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if(gzipArchive.IsArchive()) { impl = &gzipArchive; return; }
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#endif
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#ifdef MPT_WITH_UNRAR
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if(rarArchive.IsArchive()) { impl = &rarArchive; return; }
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#endif
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#ifdef MPT_WITH_ANCIENT
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if(ancientArchive.IsArchive()) { impl = &ancientArchive; return; }
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#endif
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impl = &emptyArchive;
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}
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CUnarchiver::~CUnarchiver()
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{
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return;
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}
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static inline std::string GetExtension(const std::string &filename)
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{
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if(filename.find_last_of(".") != std::string::npos)
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{
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return mpt::ToLowerCaseAscii(filename.substr(filename.find_last_of(".") + 1));
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}
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return std::string();
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}
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std::size_t CUnarchiver::FindBestFile(const std::vector<const char *> &extensions)
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{
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if(!IsArchive())
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{
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return failIndex;
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}
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uint64 biggestSize = 0;
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std::size_t bestIndex = failIndex;
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for(std::size_t i = 0; i < size(); ++i)
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{
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if(operator[](i).type != ArchiveFileType::Normal)
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{
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continue;
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}
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const std::string ext = GetExtension(operator[](i).name.ToUTF8());
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if(ext == "diz" || ext == "nfo" || ext == "txt")
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{
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// we do not want these
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continue;
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}
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// Compare with list of preferred extensions
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if(mpt::contains(extensions, ext))
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{
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bestIndex = i;
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break;
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}
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if(operator[](i).size >= biggestSize)
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{
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biggestSize = operator[](i).size;
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bestIndex = i;
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}
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}
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return bestIndex;
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}
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bool CUnarchiver::ExtractBestFile(const std::vector<const char *> &extensions)
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{
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std::size_t bestFile = FindBestFile(extensions);
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if(bestFile == failIndex)
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{
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return false;
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}
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return ExtractFile(bestFile);
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}
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bool CUnarchiver::IsArchive() const
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{
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return impl->IsArchive();
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}
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mpt::ustring CUnarchiver::GetComment() const
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{
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return impl->GetComment();
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}
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bool CUnarchiver::ExtractFile(std::size_t index)
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{
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return impl->ExtractFile(index);
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}
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FileReader CUnarchiver::GetOutputFile() const
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{
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return impl->GetOutputFile();
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}
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std::size_t CUnarchiver::size() const
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{
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return impl->size();
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}
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IArchive::const_iterator CUnarchiver::begin() const
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{
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return impl->begin();
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}
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IArchive::const_iterator CUnarchiver::end() const
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{
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return impl->end();
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}
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const ArchiveFileInfo & CUnarchiver::operator [] (std::size_t index) const
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{
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return impl->operator[](index);
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}
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OPENMPT_NAMESPACE_END
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