Mercurial > hg > orthanc
annotate Core/TemporaryFile.cpp @ 3729:982c24a70dfd
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author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Sun, 08 Mar 2020 19:51:57 +0100 |
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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 | |
8 * modify it under the terms of the GNU General Public License as | |
9 * published by the Free Software Foundation, either version 3 of the | |
10 * License, or (at your option) any later version. | |
136 | 11 * |
12 * In addition, as a special exception, the copyright holders of this | |
13 * program give permission to link the code of its release with the | |
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
15 * that use the same license as the "OpenSSL" library), and distribute | |
16 * the linked executables. You must obey the GNU General Public License | |
17 * in all respects for all of the code used other than "OpenSSL". If you | |
18 * modify file(s) with this exception, you may extend this exception to | |
19 * your version of the file(s), but you are not obligated to do so. If | |
20 * you do not wish to do so, delete this exception statement from your | |
21 * version. If you delete this exception statement from all source files | |
22 * in the program, then also delete it here. | |
0 | 23 * |
24 * This program is distributed in the hope that it will be useful, but | |
25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
27 * General Public License for more details. | |
28 * | |
29 * You should have received a copy of the GNU General Public License | |
30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
31 **/ | |
32 | |
33 | |
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34 #include "PrecompiledHeaders.h" |
2142 | 35 #include "TemporaryFile.h" |
0 | 36 |
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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 |
82 | 41 #include <boost/filesystem.hpp> |
42 | |
59 | 43 namespace Orthanc |
0 | 44 { |
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45 static std::string CreateTemporaryPath(const char* temporaryDirectory, |
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46 const char* extension) |
2140 | 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 |
2140 | 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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67 |
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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 |
2140 | 74 if (extension != NULL) |
75 { | |
76 filename.append(extension); | |
77 } | |
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78 |
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79 dir /= filename; |
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80 return dir.string(); |
2140 | 81 } |
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82 |
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83 |
2140 | 84 TemporaryFile::TemporaryFile() : |
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85 path_(CreateTemporaryPath(NULL, NULL)) |
2140 | 86 { |
87 } | |
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88 |
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89 |
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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())) |
2140 | 93 { |
94 } | |
82 | 95 |
96 | |
2140 | 97 TemporaryFile::~TemporaryFile() |
98 { | |
99 boost::filesystem::remove(path_); | |
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100 } |
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101 |
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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 } |
3184 | 109 catch (OrthancException& e) |
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110 { |
3184 | 111 throw OrthancException(e.GetErrorCode(), |
112 "Can't create temporary file \"" + path_ + | |
113 "\" with " + boost::lexical_cast<std::string>(content.size()) + | |
114 " bytes: Check you have write access to the " | |
115 "temporary directory and that it is not full"); | |
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116 } |
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117 } |
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118 |
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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 } |
3184 | 126 catch (OrthancException& e) |
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127 { |
3184 | 128 throw OrthancException(e.GetErrorCode(), |
129 "Can't read temporary file \"" + path_ + | |
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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134 |
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135 void TemporaryFile::Touch() |
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136 { |
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137 std::string empty; |
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138 Write(empty); |
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139 } |
0 | 140 } |