Mercurial > hg > orthanc

annotate Core/TemporaryFile.cpp @ 3538:23219b9da4d1

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fix ordered-slices route to be closer to 1.5.7 behaviour
author Alain Mazy <alain@mazy.be>
date Tue, 15 Oct 2019 09:53:33 +0200
parents 70524b4acc72
children 94f4a18a79cc
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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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) 2017-2019 Osimis S.A., Belgium
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6 *
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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 General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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33
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34 #include "PrecompiledHeaders.h"
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35 #include "TemporaryFile.h"
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37 #include "OrthancException.h"
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38 #include "SystemToolbox.h"
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39 #include "Toolbox.h"
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40
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41 #include <boost/filesystem.hpp>
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42
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43 namespace Orthanc
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44 {
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45 static std::string CreateTemporaryPath(const char* temporaryDirectory,
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46 const char* extension)
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47 {
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48 boost::filesystem::path dir;
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49
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50 if (temporaryDirectory == NULL)
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51 {
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52 #if BOOST_HAS_FILESYSTEM_V3 == 1
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53 dir = boost::filesystem::temp_directory_path();
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54 #elif defined(__linux__)
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55 dir = "/tmp";
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56 #else
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57 # error Support your platform here
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58 #endif
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59 }
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60 else
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61 {
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62 dir = temporaryDirectory;
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63 }
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64
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65 // We use UUID to create unique path to temporary files
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66 const std::string uuid = Orthanc::Toolbox::GenerateUuid();
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68 // New in Orthanc 1.5.8: Prefix the process ID to the name of the
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69 // temporary files, in order to locate orphan temporary files that
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70 // were left by instances of Orthanc that exited in non-clean way
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71 // https://groups.google.com/d/msg/orthanc-users/MSJX53bw6Lw/d3S3lRRLAwAJ
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72 std::string filename = "Orthanc-" + boost::lexical_cast<std::string>(SystemToolbox::GetProcessId()) + "-" + uuid;
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73
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74 if (extension != NULL)
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75 {
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76 filename.append(extension);
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77 }
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79 dir /= filename;
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80 return dir.string();
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81 }
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83
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84 TemporaryFile::TemporaryFile() :
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85 path_(CreateTemporaryPath(NULL, NULL))
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86 {
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87 }
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90 TemporaryFile::TemporaryFile(const std::string& temporaryDirectory,
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91 const std::string& extension) :
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92 path_(CreateTemporaryPath(temporaryDirectory.c_str(), extension.c_str()))
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93 {
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94 }
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96
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97 TemporaryFile::~TemporaryFile()
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98 {
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99 boost::filesystem::remove(path_);
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100 }
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102
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103 void TemporaryFile::Write(const std::string& content)
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104 {
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105 try
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106 {
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107 SystemToolbox::WriteFile(content, path_);
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108 }
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109 catch (OrthancException& e)
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110 {
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111 throw OrthancException(e.GetErrorCode(),
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112 "Can't create temporary file \"" + path_ +
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113 "\" with " + boost::lexical_cast<std::string>(content.size()) +
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114 " bytes: Check you have write access to the "
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115 "temporary directory and that it is not full");
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116 }
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117 }
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119
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120 void TemporaryFile::Read(std::string& content) const
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121 {
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122 try
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123 {
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124 SystemToolbox::ReadFile(content, path_);
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125 }
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126 catch (OrthancException& e)
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127 {
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128 throw OrthancException(e.GetErrorCode(),
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129 "Can't read temporary file \"" + path_ +
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130 "\": Another process has corrupted the temporary directory");
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131 }
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132 }
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133
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 3060
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134
6fd38327e777 Fix issue #130 (Orthanc failed to start when /tmp partition was full)
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 3060
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135 void TemporaryFile::Touch()
6fd38327e777 Fix issue #130 (Orthanc failed to start when /tmp partition was full)
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 3060
diff changeset
136 {
6fd38327e777 Fix issue #130 (Orthanc failed to start when /tmp partition was full)
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 3060
diff changeset
137 std::string empty;
6fd38327e777 Fix issue #130 (Orthanc failed to start when /tmp partition was full)
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 3060
diff changeset
138 Write(empty);
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fd5875662670 creation of namespace SystemToolbox
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 2142
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139 }
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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140 }