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1 /**
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2 * Cloud storage plugins for Orthanc
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3 * Copyright (C) 2020-2021 Osimis S.A., Belgium
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4 *
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5 * This program is free software: you can redistribute it and/or
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6 * modify it under the terms of the GNU Affero General Public License
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7 * as published by the Free Software Foundation, either version 3 of
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8 * the License, or (at your option) any later version.
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9 *
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10 * This program is distributed in the hope that it will be useful, but
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11 * WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 * Affero General Public License for more details.
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14 *
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15 * You should have received a copy of the GNU Affero General Public License
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16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 **/
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18
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78
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19 #include "FileSystemStorage.h"
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20 #include "BaseStorage.h"
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77
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21
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22 #include <SystemToolbox.h>
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23 #include <boost/filesystem.hpp>
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24 #include <boost/filesystem/fstream.hpp>
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25
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26 namespace fs = boost::filesystem;
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27
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28 void FileSystemStoragePlugin::FileSystemWriter::Write(const char* data, size_t size)
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29 {
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30 Orthanc::SystemToolbox::MakeDirectory(path_.parent_path().string());
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31
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32 Orthanc::SystemToolbox::WriteFile(reinterpret_cast<const void*>(data), size, path_.string(), fsync_);
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33 }
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34
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35 size_t FileSystemStoragePlugin::FileSystemReader::GetSize()
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36 {
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37 if (!Orthanc::SystemToolbox::IsRegularFile(path_.string()))
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38 {
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39 throw StoragePluginException(std::string("The path does not point to a regular file: ") + path_.string());
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40 }
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41
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42 try
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43 {
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44 fs::ifstream f;
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45 f.open(path_.string(), std::ifstream::in | std::ifstream::binary);
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46 if (!f.good())
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47 {
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48 throw StoragePluginException(std::string("The path does not point to a regular file: ") + path_.string());
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49 }
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50
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51 f.seekg(0, std::ios::end);
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52 std::streamsize fileSize = f.tellg();
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53 f.seekg(0, std::ios::beg);
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54
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55 f.close();
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56
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57 return fileSize;
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58 }
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59 catch (...)
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60 {
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61 throw StoragePluginException(std::string("Unexpected error while reading: ") + path_.string());
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62 }
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63
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64 }
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65
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66 void FileSystemStoragePlugin::FileSystemReader::ReadWhole(char* data, size_t size)
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67 {
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68 ReadRange(data, size, 0);
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69 }
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70
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71 void FileSystemStoragePlugin::FileSystemReader::ReadRange(char* data, size_t size, size_t fromOffset)
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72 {
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73 if (!Orthanc::SystemToolbox::IsRegularFile(path_.string()))
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74 {
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75 throw StoragePluginException(std::string("The path does not point to a regular file: ") + path_.string());
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76 }
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77
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78 try
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79 {
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80 fs::ifstream f;
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81 f.open(path_.string(), std::ifstream::in | std::ifstream::binary);
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82 if (!f.good())
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83 {
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84 throw StoragePluginException(std::string("The path does not point to a regular file: ") + path_.string());
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85 }
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86
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87 f.seekg(fromOffset, std::ios::beg);
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88
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89 f.read(reinterpret_cast<char*>(data), size);
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90
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91 f.close();
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92 }
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93 catch (...)
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94 {
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95 throw StoragePluginException(std::string("Unexpected error while reading: ") + path_.string());
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96 }
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97 }
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98
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99
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100
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101 IStorage::IWriter* FileSystemStoragePlugin::GetWriterForObject(const char* uuid, OrthancPluginContentType type, bool encryptionEnabled)
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102 {
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103 return new FileSystemWriter(BaseStorage::GetOrthancFileSystemPath(uuid, fileSystemRootPath_), fsync_);
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104 }
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105
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106 IStorage::IReader* FileSystemStoragePlugin::GetReaderForObject(const char* uuid, OrthancPluginContentType type, bool encryptionEnabled)
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107 {
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108 return new FileSystemReader(BaseStorage::GetOrthancFileSystemPath(uuid, fileSystemRootPath_));
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77
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109 }
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110
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111 void FileSystemStoragePlugin::DeleteObject(const char* uuid, OrthancPluginContentType type, bool encryptionEnabled)
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112 {
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113 try
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114 {
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115 namespace fs = boost::filesystem;
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116
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117 fs::path path = BaseStorage::GetOrthancFileSystemPath(uuid, fileSystemRootPath_);
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118
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119 try
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120 {
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121 fs::remove(path.string());
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122 }
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123 catch (...)
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124 {
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125 // Ignore the error
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126 }
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127
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128 // Remove the two parent directories, ignoring the error code if
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129 // these directories are not empty
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130
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131 try
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132 {
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133 boost::system::error_code err;
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134 fs::remove(path.parent_path().string(), err);
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135 fs::remove(path.parent_path().parent_path().string(), err);
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136 }
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137 catch (...)
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138 {
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139 // Ignore the error
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140 }
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141 }
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142 catch(Orthanc::OrthancException& e)
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143 {
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144 OrthancPlugins::LogError(GetNameForLogs() + ": error while deleting object " + std::string(uuid) + ": " + std::string(e.What()));
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145 }
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146
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147 }
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148
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149
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