Mercurial > hg > orthanc
annotate OrthancFramework/Sources/TemporaryFile.cpp @ 4335:82652c5fc04f
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Tue, 01 Dec 2020 20:31:04 +0100 |
parents | 50b0c69b653a |
children | 52166629239f |
rev | line source |
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0 | 1 /** |
59 | 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) 2017-2020 Osimis S.A., Belgium |
0 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
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8 * modify it under the terms of the GNU Lesser General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
136 | 11 * |
0 | 12 * This program is distributed in the hope that it will be useful, but |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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15 * Lesser General Public License for more details. |
0 | 16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
0 | 20 **/ |
21 | |
22 | |
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23 #include "PrecompiledHeaders.h" |
2142 | 24 #include "TemporaryFile.h" |
0 | 25 |
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26 #include "OrthancException.h" |
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27 #include "SystemToolbox.h" |
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28 #include "Toolbox.h" |
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29 |
82 | 30 #include <boost/filesystem.hpp> |
4304 | 31 #include <boost/lexical_cast.hpp> |
82 | 32 |
59 | 33 namespace Orthanc |
0 | 34 { |
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35 static std::string CreateTemporaryPath(const char* temporaryDirectory, |
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36 const char* extension) |
2140 | 37 { |
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38 boost::filesystem::path dir; |
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39 |
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40 if (temporaryDirectory == NULL) |
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41 { |
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42 #if BOOST_HAS_FILESYSTEM_V3 == 1 |
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43 dir = boost::filesystem::temp_directory_path(); |
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44 #elif defined(__linux__) |
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45 dir = "/tmp"; |
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46 #else |
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47 # error Support your platform here |
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48 #endif |
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49 } |
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50 else |
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51 { |
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52 dir = temporaryDirectory; |
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53 } |
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54 |
2140 | 55 // We use UUID to create unique path to temporary files |
4297 | 56 const std::string uuid = Toolbox::GenerateUuid(); |
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57 |
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58 // New in Orthanc 1.5.8: Prefix the process ID to the name of the |
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59 // temporary files, in order to locate orphan temporary files that |
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60 // were left by instances of Orthanc that exited in non-clean way |
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61 // https://groups.google.com/d/msg/orthanc-users/MSJX53bw6Lw/d3S3lRRLAwAJ |
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62 std::string filename = "Orthanc-" + boost::lexical_cast<std::string>(SystemToolbox::GetProcessId()) + "-" + uuid; |
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63 |
2140 | 64 if (extension != NULL) |
65 { | |
66 filename.append(extension); | |
67 } | |
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68 |
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69 dir /= filename; |
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70 return dir.string(); |
2140 | 71 } |
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72 |
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73 |
2140 | 74 TemporaryFile::TemporaryFile() : |
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75 path_(CreateTemporaryPath(NULL, NULL)) |
2140 | 76 { |
77 } | |
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78 |
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79 |
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80 TemporaryFile::TemporaryFile(const std::string& temporaryDirectory, |
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81 const std::string& extension) : |
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82 path_(CreateTemporaryPath(temporaryDirectory.c_str(), extension.c_str())) |
2140 | 83 { |
84 } | |
82 | 85 |
86 | |
2140 | 87 TemporaryFile::~TemporaryFile() |
88 { | |
89 boost::filesystem::remove(path_); | |
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90 } |
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91 |
4300 | 92 const std::string &TemporaryFile::GetPath() const |
93 { | |
94 return path_; | |
95 } | |
96 | |
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97 |
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98 void TemporaryFile::Write(const std::string& content) |
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99 { |
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100 try |
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101 { |
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102 SystemToolbox::WriteFile(content, path_); |
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103 } |
3184 | 104 catch (OrthancException& e) |
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105 { |
3184 | 106 throw OrthancException(e.GetErrorCode(), |
107 "Can't create temporary file \"" + path_ + | |
108 "\" with " + boost::lexical_cast<std::string>(content.size()) + | |
109 " bytes: Check you have write access to the " | |
110 "temporary directory and that it is not full"); | |
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111 } |
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112 } |
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113 |
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114 |
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115 void TemporaryFile::Read(std::string& content) const |
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116 { |
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117 try |
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118 { |
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119 SystemToolbox::ReadFile(content, path_); |
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120 } |
3184 | 121 catch (OrthancException& e) |
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122 { |
3184 | 123 throw OrthancException(e.GetErrorCode(), |
124 "Can't read temporary file \"" + path_ + | |
125 "\": Another process has corrupted the temporary directory"); | |
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126 } |
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127 } |
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128 |
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129 |
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130 void TemporaryFile::Touch() |
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131 { |
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132 std::string empty; |
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133 Write(empty); |
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134 } |
4230 | 135 |
136 | |
137 uint64_t TemporaryFile::GetFileSize() const | |
138 { | |
139 return SystemToolbox::GetFileSize(path_); | |
140 } | |
0 | 141 } |