789 lines
21 KiB
C++
789 lines
21 KiB
C++
/**
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* Orthanc - A Lightweight, RESTful DICOM Store
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* Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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* Department, University Hospital of Liege, Belgium
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* Copyright (C) 2017-2023 Osimis S.A., Belgium
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* Copyright (C) 2024-2025 Orthanc Team SRL, Belgium
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* Copyright (C) 2021-2025 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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*
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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 Lesser General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program. If not, see
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* <http://www.gnu.org/licenses/>.
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**/
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#include "../PrecompiledHeaders.h"
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#include "StorageAccessor.h"
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#include "StorageCache.h"
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#include "../Logging.h"
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#include "../StringMemoryBuffer.h"
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#include "../Compression/ZlibCompressor.h"
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#include "../MetricsRegistry.h"
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#include "../OrthancException.h"
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#include "../SerializationToolbox.h"
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#include "../Toolbox.h"
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#if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
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# include "../HttpServer/HttpStreamTranscoder.h"
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#endif
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#include <boost/algorithm/string.hpp>
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static const std::string METRICS_CREATE_DURATION = "orthanc_storage_create_duration_ms";
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static const std::string METRICS_READ_DURATION = "orthanc_storage_read_duration_ms";
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static const std::string METRICS_REMOVE_DURATION = "orthanc_storage_remove_duration_ms";
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static const std::string METRICS_READ_BYTES = "orthanc_storage_read_bytes";
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static const std::string METRICS_WRITTEN_BYTES = "orthanc_storage_written_bytes";
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static const std::string METRICS_CACHE_HIT_COUNT = "orthanc_storage_cache_hit_count";
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static const std::string METRICS_CACHE_MISS_COUNT = "orthanc_storage_cache_miss_count";
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namespace Orthanc
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{
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void StorageAccessor::Range::SanityCheck() const
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{
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if (hasStart_ && hasEnd_ && start_ > end_)
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{
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throw OrthancException(ErrorCode_BadSequenceOfCalls);
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}
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}
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StorageAccessor::Range::Range():
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hasStart_(false),
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start_(0),
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hasEnd_(false),
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end_(0)
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{
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}
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void StorageAccessor::Range::SetStartInclusive(uint64_t start)
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{
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hasStart_ = true;
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start_ = start;
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}
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void StorageAccessor::Range::SetEndInclusive(uint64_t end)
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{
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hasEnd_ = true;
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end_ = end;
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}
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uint64_t StorageAccessor::Range::GetStartInclusive() const
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{
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if (!hasStart_)
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{
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throw OrthancException(ErrorCode_BadSequenceOfCalls);
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}
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else if (hasEnd_ && start_ > end_)
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{
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throw OrthancException(ErrorCode_BadSequenceOfCalls);
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}
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else
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{
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return start_;
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}
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}
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uint64_t StorageAccessor::Range::GetEndInclusive() const
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{
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if (!hasEnd_)
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{
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throw OrthancException(ErrorCode_BadSequenceOfCalls);
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}
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else if (hasStart_ && start_ > end_)
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{
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throw OrthancException(ErrorCode_BadSequenceOfCalls);
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}
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else
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{
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return end_;
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}
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}
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std::string StorageAccessor::Range::FormatHttpContentRange(uint64_t fullSize) const
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{
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SanityCheck();
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if (fullSize == 0 ||
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(hasStart_ && start_ >= fullSize) ||
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(hasEnd_ && end_ >= fullSize))
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{
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throw OrthancException(ErrorCode_BadRange);
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}
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std::string s = "bytes ";
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if (hasStart_)
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{
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s += boost::lexical_cast<std::string>(start_);
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}
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else
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{
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s += "0";
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}
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s += "-";
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if (hasEnd_)
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{
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s += boost::lexical_cast<std::string>(end_);
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}
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else
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{
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s += boost::lexical_cast<std::string>(fullSize - 1);
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}
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return s + "/" + boost::lexical_cast<std::string>(fullSize);
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}
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void StorageAccessor::Range::Extract(std::string &target,
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const std::string &source) const
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{
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SanityCheck();
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if (hasStart_ && start_ >= source.size())
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{
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throw OrthancException(ErrorCode_BadRange);
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}
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if (hasEnd_ && end_ >= source.size())
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{
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throw OrthancException(ErrorCode_BadRange);
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}
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if (hasStart_ && hasEnd_)
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{
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target = source.substr(start_, end_ - start_ + 1);
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}
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else if (hasStart_)
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{
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target = source.substr(start_, source.size() - start_);
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}
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else if (hasEnd_)
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{
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target = source.substr(0, end_ + 1);
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}
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else
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{
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target = source;
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}
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}
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uint64_t StorageAccessor::Range::GetContentLength(uint64_t fullSize) const
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{
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SanityCheck();
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if (fullSize == 0)
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{
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throw OrthancException(ErrorCode_BadRange);
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}
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if (hasStart_ && start_ >= fullSize)
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{
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throw OrthancException(ErrorCode_BadRange);
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}
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if (hasEnd_ && end_ >= fullSize)
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{
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throw OrthancException(ErrorCode_BadRange);
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}
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if (hasStart_ && hasEnd_)
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{
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return end_ - start_ + 1;
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}
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else if (hasStart_)
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{
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return fullSize - start_;
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}
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else if (hasEnd_)
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{
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return end_ + 1;
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}
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else
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{
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return fullSize;
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}
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}
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StorageAccessor::Range StorageAccessor::Range::ParseHttpRange(const std::string& s)
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{
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static const std::string BYTES = "bytes=";
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if (!boost::starts_with(s, BYTES))
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{
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throw OrthancException(ErrorCode_BadRange); // Range not satisfiable
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}
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std::vector<std::string> tokens;
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Orthanc::Toolbox::TokenizeString(tokens, s.substr(BYTES.length()), '-');
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if (tokens.size() != 2)
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{
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throw OrthancException(ErrorCode_BadRange);
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}
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Range range;
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uint64_t tmp;
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if (!tokens[0].empty())
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{
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if (SerializationToolbox::ParseUnsignedInteger64(tmp, tokens[0]))
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{
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range.SetStartInclusive(tmp);
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}
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}
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if (!tokens[1].empty())
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{
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if (SerializationToolbox::ParseUnsignedInteger64(tmp, tokens[1]))
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{
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range.SetEndInclusive(tmp);
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}
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}
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range.SanityCheck();
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return range;
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}
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class StorageAccessor::MetricsTimer : public boost::noncopyable
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{
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private:
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std::unique_ptr<MetricsRegistry::Timer> timer_;
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public:
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MetricsTimer(StorageAccessor& that,
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const std::string& name)
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{
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if (that.metrics_ != NULL)
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{
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timer_.reset(new MetricsRegistry::Timer(*that.metrics_, name));
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}
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}
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};
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StorageAccessor::StorageAccessor(IPluginStorageArea& area) :
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area_(area),
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cache_(NULL),
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metrics_(NULL)
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{
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}
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StorageAccessor::StorageAccessor(IPluginStorageArea& area,
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StorageCache& cache) :
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area_(area),
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cache_(&cache),
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metrics_(NULL)
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{
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}
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StorageAccessor::StorageAccessor(IPluginStorageArea& area,
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MetricsRegistry& metrics) :
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area_(area),
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cache_(NULL),
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metrics_(&metrics)
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{
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}
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StorageAccessor::StorageAccessor(IPluginStorageArea& area,
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StorageCache& cache,
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MetricsRegistry& metrics) :
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area_(area),
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cache_(&cache),
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metrics_(&metrics)
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{
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}
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void StorageAccessor::Write(FileInfo& info,
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const void* data,
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size_t size,
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FileContentType type,
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CompressionType compression,
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bool storeMd5,
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const DicomInstanceToStore* instance)
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{
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const std::string uuid = Toolbox::GenerateUuid();
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std::string md5;
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if (storeMd5)
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{
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Toolbox::ComputeMD5(md5, data, size);
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}
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std::string customData;
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switch (compression)
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{
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case CompressionType_None:
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{
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{
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MetricsTimer timer(*this, METRICS_CREATE_DURATION);
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area_.Create(customData, uuid, data, size, type, compression, instance);
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}
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if (metrics_ != NULL)
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{
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metrics_->IncrementIntegerValue(METRICS_WRITTEN_BYTES, size);
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}
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if (cache_ != NULL)
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{
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StorageCache::Accessor cacheAccessor(*cache_);
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cacheAccessor.Add(uuid, type, data, size);
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}
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info = FileInfo(uuid, type, size, md5);
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info.SetCustomData(customData);
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return;
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}
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case CompressionType_ZlibWithSize:
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{
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ZlibCompressor zlib;
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std::string compressed;
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zlib.Compress(compressed, data, size);
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std::string compressedMD5;
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if (storeMd5)
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{
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Toolbox::ComputeMD5(compressedMD5, compressed);
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}
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{
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MetricsTimer timer(*this, METRICS_CREATE_DURATION);
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if (compressed.size() > 0)
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{
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area_.Create(customData, uuid, &compressed[0], compressed.size(), type, compression, instance);
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}
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else
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{
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area_.Create(customData, uuid, NULL, 0, type, compression, instance);
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}
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}
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if (metrics_ != NULL)
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{
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metrics_->IncrementIntegerValue(METRICS_WRITTEN_BYTES, compressed.size());
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}
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if (cache_ != NULL)
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{
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StorageCache::Accessor cacheAccessor(*cache_);
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cacheAccessor.Add(uuid, type, data, size); // always add uncompressed data to cache
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}
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info = FileInfo(uuid, type, size, md5,
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CompressionType_ZlibWithSize, compressed.size(), compressedMD5);
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info.SetCustomData(customData);
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return;
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}
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default:
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throw OrthancException(ErrorCode_NotImplemented);
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}
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}
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void StorageAccessor::Read(std::string& content,
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const FileInfo& info)
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{
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if (cache_ == NULL)
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{
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ReadWholeInternal(content, info);
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}
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else
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{
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StorageCache::Accessor cacheAccessor(*cache_);
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if (!cacheAccessor.Fetch(content, info.GetUuid(), info.GetContentType()))
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{
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if (metrics_ != NULL)
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{
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metrics_->IncrementIntegerValue(METRICS_CACHE_MISS_COUNT, 1);
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}
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ReadWholeInternal(content, info);
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// always store the uncompressed data in cache
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cacheAccessor.Add(info.GetUuid(), info.GetContentType(), content);
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}
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else if (metrics_ != NULL)
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{
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metrics_->IncrementIntegerValue(METRICS_CACHE_HIT_COUNT, 1);
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}
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}
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}
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void StorageAccessor::ReadWholeInternal(std::string& content,
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const FileInfo& info)
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{
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switch (info.GetCompressionType())
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{
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case CompressionType_None:
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{
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std::unique_ptr<IMemoryBuffer> buffer;
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{
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MetricsTimer timer(*this, METRICS_READ_DURATION);
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buffer.reset(area_.ReadRange(info.GetUuid(), info.GetContentType(), 0, info.GetCompressedSize(), info.GetCustomData()));
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}
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if (metrics_ != NULL)
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{
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metrics_->IncrementIntegerValue(METRICS_READ_BYTES, buffer->GetSize());
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}
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buffer->MoveToString(content);
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break;
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}
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case CompressionType_ZlibWithSize:
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{
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ZlibCompressor zlib;
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std::unique_ptr<IMemoryBuffer> compressed;
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{
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MetricsTimer timer(*this, METRICS_READ_DURATION);
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compressed.reset(area_.ReadRange(info.GetUuid(), info.GetContentType(), 0, info.GetCompressedSize(), info.GetCustomData()));
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}
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if (metrics_ != NULL)
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{
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metrics_->IncrementIntegerValue(METRICS_READ_BYTES, compressed->GetSize());
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}
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zlib.Uncompress(content, compressed->GetData(), compressed->GetSize());
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break;
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}
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default:
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{
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throw OrthancException(ErrorCode_NotImplemented);
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}
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}
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// TODO Check the validity of the uncompressed MD5?
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}
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void StorageAccessor::ReadRaw(std::string& content,
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const FileInfo& info)
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{
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if (cache_ == NULL || info.GetCompressionType() != CompressionType_None)
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{
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ReadRawInternal(content, info);
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}
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else
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{// use the cache only if the data is uncompressed.
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StorageCache::Accessor cacheAccessor(*cache_);
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if (!cacheAccessor.Fetch(content, info.GetUuid(), info.GetContentType()))
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{
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if (metrics_ != NULL)
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{
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metrics_->IncrementIntegerValue(METRICS_CACHE_MISS_COUNT, 1);
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}
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ReadRawInternal(content, info);
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cacheAccessor.Add(info.GetUuid(), info.GetContentType(), content);
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}
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else if (metrics_ != NULL)
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{
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metrics_->IncrementIntegerValue(METRICS_CACHE_HIT_COUNT, 1);
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}
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}
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}
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void StorageAccessor::ReadRawInternal(std::string& content,
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const FileInfo& info)
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{
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std::unique_ptr<IMemoryBuffer> buffer;
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{
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MetricsTimer timer(*this, METRICS_READ_DURATION);
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buffer.reset(area_.ReadRange(info.GetUuid(), info.GetContentType(), 0, info.GetCompressedSize(), info.GetCustomData()));
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}
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if (metrics_ != NULL)
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{
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metrics_->IncrementIntegerValue(METRICS_READ_BYTES, buffer->GetSize());
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}
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|
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buffer->MoveToString(content);
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}
|
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|
|
|
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void StorageAccessor::Remove(const std::string& fileUuid,
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FileContentType type,
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const std::string& customData)
|
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{
|
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if (cache_ != NULL)
|
|
{
|
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cache_->Invalidate(fileUuid, type);
|
|
}
|
|
|
|
{
|
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MetricsTimer timer(*this, METRICS_REMOVE_DURATION);
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area_.Remove(fileUuid, type, customData);
|
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}
|
|
}
|
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|
|
|
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void StorageAccessor::Remove(const FileInfo &info)
|
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{
|
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Remove(info.GetUuid(), info.GetContentType(), info.GetCustomData());
|
|
}
|
|
|
|
|
|
void StorageAccessor::ReadStartRange(std::string& target,
|
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const FileInfo& info,
|
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uint64_t end /* exclusive */)
|
|
{
|
|
if (cache_ == NULL)
|
|
{
|
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ReadStartRangeInternal(target, info, end);
|
|
}
|
|
else
|
|
{
|
|
StorageCache::Accessor accessorStartRange(*cache_);
|
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if (!accessorStartRange.FetchStartRange(target, info.GetUuid(), info.GetContentType(), end))
|
|
{
|
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// the start range is not in cache, let's check if the whole file is
|
|
StorageCache::Accessor accessorWhole(*cache_);
|
|
if (!accessorWhole.Fetch(target, info.GetUuid(), info.GetContentType()))
|
|
{
|
|
if (metrics_ != NULL)
|
|
{
|
|
metrics_->IncrementIntegerValue(METRICS_CACHE_MISS_COUNT, 1);
|
|
}
|
|
|
|
// if nothing is in the cache, let's read and cache only the start
|
|
ReadStartRangeInternal(target, info, end);
|
|
accessorStartRange.AddStartRange(info.GetUuid(), info.GetContentType(), target);
|
|
}
|
|
else
|
|
{
|
|
if (metrics_ != NULL)
|
|
{
|
|
metrics_->IncrementIntegerValue(METRICS_CACHE_HIT_COUNT, 1);
|
|
}
|
|
|
|
// we have read the whole file, check size and resize if needed
|
|
if (target.size() < end)
|
|
{
|
|
throw OrthancException(ErrorCode_CorruptedFile);
|
|
}
|
|
|
|
target.resize(end);
|
|
}
|
|
}
|
|
else if (metrics_ != NULL)
|
|
{
|
|
metrics_->IncrementIntegerValue(METRICS_CACHE_HIT_COUNT, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
void StorageAccessor::ReadStartRangeInternal(std::string& target,
|
|
const FileInfo& info,
|
|
uint64_t end /* exclusive */)
|
|
{
|
|
std::unique_ptr<IMemoryBuffer> buffer;
|
|
|
|
{
|
|
MetricsTimer timer(*this, METRICS_READ_DURATION);
|
|
buffer.reset(area_.ReadRange(info.GetUuid(), info.GetContentType(), 0, end, info.GetCustomData()));
|
|
assert(buffer->GetSize() == end);
|
|
}
|
|
|
|
if (metrics_ != NULL)
|
|
{
|
|
metrics_->IncrementIntegerValue(METRICS_READ_BYTES, buffer->GetSize());
|
|
}
|
|
|
|
buffer->MoveToString(target);
|
|
}
|
|
|
|
|
|
void StorageAccessor::ReadRange(std::string &target,
|
|
const FileInfo &info,
|
|
const Range &range,
|
|
bool uncompressIfNeeded)
|
|
{
|
|
if (uncompressIfNeeded &&
|
|
info.GetCompressionType() != CompressionType_None)
|
|
{
|
|
// An uncompression is needed in this case
|
|
if (cache_ != NULL)
|
|
{
|
|
StorageCache::Accessor cacheAccessor(*cache_);
|
|
|
|
std::string content;
|
|
if (cacheAccessor.Fetch(content, info.GetUuid(), info.GetContentType()))
|
|
{
|
|
range.Extract(target, content);
|
|
return;
|
|
}
|
|
}
|
|
|
|
std::string content;
|
|
Read(content, info);
|
|
range.Extract(target, content);
|
|
}
|
|
else
|
|
{
|
|
// Access to the raw attachment is sufficient in this case
|
|
if (info.GetCompressionType() == CompressionType_None &&
|
|
cache_ != NULL)
|
|
{
|
|
// Check out whether the raw attachment is already present in the cache, by chance
|
|
StorageCache::Accessor cacheAccessor(*cache_);
|
|
|
|
std::string content;
|
|
if (cacheAccessor.Fetch(content, info.GetUuid(), info.GetContentType()))
|
|
{
|
|
range.Extract(target, content);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (range.HasEnd() &&
|
|
range.GetEndInclusive() >= info.GetCompressedSize())
|
|
{
|
|
throw OrthancException(ErrorCode_BadRange);
|
|
}
|
|
|
|
std::unique_ptr<IMemoryBuffer> buffer;
|
|
|
|
if (range.HasStart() &&
|
|
range.HasEnd())
|
|
{
|
|
buffer.reset(area_.ReadRange(info.GetUuid(), info.GetContentType(), range.GetStartInclusive(), range.GetEndInclusive() + 1, info.GetCustomData()));
|
|
}
|
|
else if (range.HasStart())
|
|
{
|
|
buffer.reset(area_.ReadRange(info.GetUuid(), info.GetContentType(), range.GetStartInclusive(), info.GetCompressedSize(), info.GetCustomData()));
|
|
}
|
|
else if (range.HasEnd())
|
|
{
|
|
buffer.reset(area_.ReadRange(info.GetUuid(), info.GetContentType(), 0, range.GetEndInclusive() + 1, info.GetCustomData()));
|
|
}
|
|
else
|
|
{
|
|
buffer.reset(area_.ReadRange(info.GetUuid(), info.GetContentType(), 0, info.GetCompressedSize(), info.GetCustomData()));
|
|
}
|
|
|
|
buffer->MoveToString(target);
|
|
}
|
|
}
|
|
|
|
|
|
#if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
|
|
void StorageAccessor::SetupSender(BufferHttpSender& sender,
|
|
const FileInfo& info,
|
|
const std::string& mime)
|
|
{
|
|
Read(sender.GetBuffer(), info);
|
|
|
|
sender.SetContentType(mime);
|
|
|
|
const char* extension;
|
|
switch (info.GetContentType())
|
|
{
|
|
case FileContentType_Dicom:
|
|
case FileContentType_DicomUntilPixelData:
|
|
extension = ".dcm";
|
|
break;
|
|
|
|
case FileContentType_DicomAsJson:
|
|
extension = ".json";
|
|
break;
|
|
|
|
default:
|
|
// Non-standard content type
|
|
extension = "";
|
|
}
|
|
|
|
sender.SetContentFilename(info.GetUuid() + std::string(extension));
|
|
}
|
|
#endif
|
|
|
|
|
|
#if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
|
|
void StorageAccessor::AnswerFile(HttpOutput& output,
|
|
const FileInfo& info,
|
|
MimeType mime,
|
|
const std::string& contentFilename)
|
|
{
|
|
AnswerFile(output, info, EnumerationToString(mime), contentFilename);
|
|
}
|
|
#endif
|
|
|
|
|
|
#if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
|
|
void StorageAccessor::AnswerFile(HttpOutput& output,
|
|
const FileInfo& info,
|
|
const std::string& mime,
|
|
const std::string& contentFilename)
|
|
{
|
|
BufferHttpSender sender;
|
|
SetupSender(sender, info, mime);
|
|
sender.SetContentFilename(contentFilename);
|
|
|
|
HttpStreamTranscoder transcoder(sender, CompressionType_None); // since 1.11.2, the storage accessor only returns uncompressed buffers
|
|
output.Answer(transcoder);
|
|
}
|
|
#endif
|
|
|
|
|
|
#if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
|
|
void StorageAccessor::AnswerFile(RestApiOutput& output,
|
|
const FileInfo& info,
|
|
MimeType mime,
|
|
const std::string& contentFilename)
|
|
{
|
|
AnswerFile(output, info, EnumerationToString(mime), contentFilename);
|
|
}
|
|
#endif
|
|
|
|
|
|
#if ORTHANC_ENABLE_CIVETWEB == 1 || ORTHANC_ENABLE_MONGOOSE == 1
|
|
void StorageAccessor::AnswerFile(RestApiOutput& output,
|
|
const FileInfo& info,
|
|
const std::string& mime,
|
|
const std::string& contentFilename)
|
|
{
|
|
BufferHttpSender sender;
|
|
SetupSender(sender, info, mime);
|
|
sender.SetContentFilename(contentFilename);
|
|
|
|
HttpStreamTranscoder transcoder(sender, CompressionType_None); // since 1.11.2, the storage accessor only returns uncompressed buffers
|
|
output.AnswerStream(transcoder);
|
|
}
|
|
#endif
|
|
|
|
}
|