Mercurial > hg > orthanc
annotate OrthancFramework/Sources/HttpServer/FilesystemHttpSender.cpp @ 5853:4d932683049d get-scu tip
very first implementation of C-Get SCU
| author | Alain Mazy <am@orthanc.team> |
|---|---|
| date | Tue, 29 Oct 2024 17:25:49 +0100 |
| parents | f7adfb22e20e |
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| rev | line source |
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| 208 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium |
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 208 | 8 * |
| 9 * This program is free software: you can redistribute it and/or | |
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10 * modify it under the terms of the GNU Lesser General Public License |
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11 * as published by the Free Software Foundation, either version 3 of |
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bf7b9edf6b81
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12 * the License, or (at your option) any later version. |
| 208 | 13 * |
| 14 * This program is distributed in the hope that it will be useful, but | |
| 15 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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17 * Lesser General Public License for more details. |
| 208 | 18 * |
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19 * You should have received a copy of the GNU Lesser General Public |
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20 * License along with this program. If not, see |
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21 * <http://www.gnu.org/licenses/>. |
| 208 | 22 **/ |
| 23 | |
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24 #include "../PrecompiledHeaders.h" |
| 208 | 25 #include "FilesystemHttpSender.h" |
| 26 | |
| 1522 | 27 #include "../OrthancException.h" |
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28 |
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29 static const size_t CHUNK_SIZE = 64 * 1024; // Use 64KB chunks |
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30 |
| 208 | 31 namespace Orthanc |
| 32 { | |
| 1522 | 33 void FilesystemHttpSender::Initialize(const boost::filesystem::path& path) |
| 208 | 34 { |
| 1522 | 35 SetContentFilename(path.filename().string()); |
| 36 file_.open(path.string().c_str(), std::ifstream::binary); | |
| 37 | |
| 38 if (!file_.is_open()) | |
| 39 { | |
| 40 throw OrthancException(ErrorCode_InexistentFile); | |
| 41 } | |
| 208 | 42 |
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43 file_.seekg(0, file_.end); |
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44 size_ = file_.tellg(); |
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45 file_.seekg(0, file_.beg); |
| 217 | 46 } |
| 47 | |
| 4298 | 48 FilesystemHttpSender::FilesystemHttpSender(const std::string& path) |
| 49 { | |
| 50 Initialize(path); | |
| 51 } | |
| 52 | |
| 53 FilesystemHttpSender::FilesystemHttpSender(const boost::filesystem::path& path) | |
| 54 { | |
| 55 Initialize(path); | |
| 56 } | |
| 57 | |
| 58 FilesystemHttpSender::FilesystemHttpSender(const std::string& path, | |
| 59 MimeType contentType) | |
| 60 { | |
| 61 SetContentType(contentType); | |
| 62 Initialize(path); | |
| 63 } | |
| 64 | |
| 65 FilesystemHttpSender::FilesystemHttpSender(const FilesystemStorage& storage, | |
| 66 const std::string& uuid) | |
| 67 { | |
| 68 Initialize(storage.GetPath(uuid)); | |
| 69 } | |
| 70 | |
| 71 uint64_t FilesystemHttpSender::GetContentLength() | |
| 72 { | |
| 73 return size_; | |
| 74 } | |
| 75 | |
| 1522 | 76 |
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77 bool FilesystemHttpSender::ReadNextChunk() |
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78 { |
| 1525 | 79 if (chunk_.size() == 0) |
| 1522 | 80 { |
| 1525 | 81 chunk_.resize(CHUNK_SIZE); |
| 1522 | 82 } |
| 83 | |
| 1525 | 84 file_.read(&chunk_[0], chunk_.size()); |
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85 |
| 1525 | 86 if ((file_.flags() & std::istream::failbit) || |
| 87 file_.gcount() < 0) | |
| 1522 | 88 { |
| 1525 | 89 throw OrthancException(ErrorCode_CorruptedFile); |
| 1522 | 90 } |
| 91 | |
| 2332 | 92 chunkSize_ = static_cast<size_t>(file_.gcount()); |
| 1525 | 93 |
| 94 return chunkSize_ > 0; | |
| 208 | 95 } |
| 4298 | 96 |
| 97 const char *FilesystemHttpSender::GetChunkContent() | |
| 98 { | |
| 99 return chunk_.c_str(); | |
| 100 } | |
| 101 | |
| 102 size_t FilesystemHttpSender::GetChunkSize() | |
| 103 { | |
| 104 return chunkSize_; | |
| 105 } | |
| 208 | 106 } |