Mercurial > hg > orthanc
view OrthancFramework/Sources/Compression/ZipWriter.cpp @ 4336:9b38aadd4a99
tagging pre-release of the Orthanc Framework for Stone Web viewer 1.0
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Wed, 02 Dec 2020 07:14:23 +0100 |
parents | 785a2713323e |
children | d9473bd5ed43 |
line wrap: on
line source
/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2020 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * This program 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/>. **/ #include "../PrecompiledHeaders.h" #ifndef NOMINMAX #define NOMINMAX #endif #include "ZipWriter.h" #include <limits> #include <boost/filesystem.hpp> #include <boost/date_time/posix_time/posix_time.hpp> #include "../../Resources/ThirdParty/minizip/zip.h" #include "../OrthancException.h" #include "../Logging.h" static void PrepareFileInfo(zip_fileinfo& zfi) { memset(&zfi, 0, sizeof(zfi)); using namespace boost::posix_time; ptime now = second_clock::local_time(); boost::gregorian::date today = now.date(); ptime midnight(today); time_duration sinceMidnight = now - midnight; zfi.tmz_date.tm_sec = static_cast<unsigned int>(sinceMidnight.seconds()); // seconds after the minute - [0,59] zfi.tmz_date.tm_min = static_cast<unsigned int>(sinceMidnight.minutes()); // minutes after the hour - [0,59] zfi.tmz_date.tm_hour = static_cast<unsigned int>(sinceMidnight.hours()); // hours since midnight - [0,23] // http://www.boost.org/doc/libs/1_35_0/doc/html/boost/gregorian/greg_day.html zfi.tmz_date.tm_mday = today.day(); // day of the month - [1,31] // http://www.boost.org/doc/libs/1_35_0/doc/html/boost/gregorian/greg_month.html zfi.tmz_date.tm_mon = today.month() - 1; // months since January - [0,11] // http://www.boost.org/doc/libs/1_35_0/doc/html/boost/gregorian/greg_year.html zfi.tmz_date.tm_year = today.year(); // years - [1980..2044] } namespace Orthanc { struct ZipWriter::PImpl { zipFile file_; PImpl() : file_(NULL) { } }; ZipWriter::ZipWriter() : pimpl_(new PImpl), isZip64_(false), hasFileInZip_(false), append_(false), compressionLevel_(6) { } ZipWriter::~ZipWriter() { Close(); } void ZipWriter::Close() { if (IsOpen()) { zipClose(pimpl_->file_, "Created by Orthanc"); pimpl_->file_ = NULL; hasFileInZip_ = false; } } bool ZipWriter::IsOpen() const { return pimpl_->file_ != NULL; } void ZipWriter::Open() { if (IsOpen()) { return; } if (path_.size() == 0) { throw OrthancException(ErrorCode_BadSequenceOfCalls, "Please call SetOutputPath() before creating the file"); } hasFileInZip_ = false; int mode = APPEND_STATUS_CREATE; if (append_ && boost::filesystem::exists(path_)) { mode = APPEND_STATUS_ADDINZIP; } if (isZip64_) { pimpl_->file_ = zipOpen64(path_.c_str(), mode); } else { pimpl_->file_ = zipOpen(path_.c_str(), mode); } if (!pimpl_->file_) { throw OrthancException(ErrorCode_CannotWriteFile, "Cannot create new ZIP archive: " + path_); } } void ZipWriter::SetOutputPath(const char* path) { Close(); path_ = path; } const std::string &ZipWriter::GetOutputPath() const { return path_; } void ZipWriter::SetZip64(bool isZip64) { Close(); isZip64_ = isZip64; } void ZipWriter::SetCompressionLevel(uint8_t level) { if (level >= 10) { throw OrthancException(ErrorCode_ParameterOutOfRange, "ZIP compression level must be between 0 (no compression) " "and 9 (highest compression)"); } Close(); compressionLevel_ = level; } uint8_t ZipWriter::GetCompressionLevel() const { return compressionLevel_; } void ZipWriter::OpenFile(const char* path) { Open(); zip_fileinfo zfi; PrepareFileInfo(zfi); int result; if (isZip64_) { result = zipOpenNewFileInZip64(pimpl_->file_, path, &zfi, NULL, 0, NULL, 0, "", // Comment Z_DEFLATED, compressionLevel_, 1); } else { result = zipOpenNewFileInZip(pimpl_->file_, path, &zfi, NULL, 0, NULL, 0, "", // Comment Z_DEFLATED, compressionLevel_); } if (result != 0) { throw OrthancException(ErrorCode_CannotWriteFile, "Cannot add new file inside ZIP archive: " + std::string(path)); } hasFileInZip_ = true; } void ZipWriter::Write(const std::string& data) { if (data.size()) { Write(&data[0], data.size()); } } void ZipWriter::Write(const void* data, size_t length) { if (!hasFileInZip_) { throw OrthancException(ErrorCode_BadSequenceOfCalls, "Call first OpenFile()"); } const size_t maxBytesInAStep = std::numeric_limits<int32_t>::max(); const char* p = reinterpret_cast<const char*>(data); while (length > 0) { int bytes = static_cast<int32_t>(length <= maxBytesInAStep ? length : maxBytesInAStep); if (zipWriteInFileInZip(pimpl_->file_, p, bytes)) { throw OrthancException(ErrorCode_CannotWriteFile, "Cannot write data to ZIP archive: " + path_); } p += bytes; length -= bytes; } } void ZipWriter::SetAppendToExisting(bool append) { Close(); append_ = append; } bool ZipWriter::IsAppendToExisting() const { return append_; } bool ZipWriter::IsZip64() const { return isZip64_; } }