annotate Aws/AwsS3StoragePlugin.cpp @ 84:8a9207933297

MoveStorageJob serialization
author Alain Mazy <am@osimis.io>
date Fri, 21 Oct 2022 14:14:27 +0200
parents d7295e8678d7
children 1bc055199cd2
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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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19 #include "AwsS3StoragePlugin.h"
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20
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21 #include <aws/core/Aws.h>
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22 #include <aws/s3/S3Client.h>
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23 #include <aws/s3/model/PutObjectRequest.h>
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24 #include <aws/s3/model/GetObjectRequest.h>
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25 #include <aws/s3/model/ListObjectsRequest.h>
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26 #include <aws/s3/model/DeleteObjectRequest.h>
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27 #include <aws/core/auth/AWSCredentialsProvider.h>
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28 #include <aws/core/utils/memory/stl/AWSStringStream.h>
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29 #include <aws/core/utils/HashingUtils.h>
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30 #include <aws/crt/Api.h>
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32 #include <boost/lexical_cast.hpp>
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33 #include <iostream>
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34 #include <fstream>
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35
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36 const char* ALLOCATION_TAG = "OrthancS3";
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38 class AwsS3StoragePlugin : public BaseStorage
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39 {
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40 public:
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41
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42 Aws::S3::S3Client client_;
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43 std::string bucketName_;
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44 bool storageContainsUnknownFiles_;
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46 public:
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47
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48 AwsS3StoragePlugin(const std::string& nameForLogs, const Aws::S3::S3Client& client, const std::string& bucketName, bool enableLegacyStorageStructure, bool storageContainsUnknownFiles);
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50 virtual ~AwsS3StoragePlugin();
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51
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52 virtual IWriter* GetWriterForObject(const char* uuid, OrthancPluginContentType type, bool encryptionEnabled);
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53 virtual IReader* GetReaderForObject(const char* uuid, OrthancPluginContentType type, bool encryptionEnabled);
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54 virtual void DeleteObject(const char* uuid, OrthancPluginContentType type, bool encryptionEnabled);
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55 };
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58 class Writer : public IStorage::IWriter
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59 {
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60 std::string path_;
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61 Aws::S3::S3Client client_;
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62 std::string bucketName_;
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64 public:
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65 Writer(const Aws::S3::S3Client& client, const std::string& bucketName, const std::string& path)
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66 : path_(path),
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67 client_(client),
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68 bucketName_(bucketName)
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69 {
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70 }
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71
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72 virtual ~Writer()
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73 {
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74 }
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75
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76 virtual void Write(const char* data, size_t size)
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77 {
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78 Aws::S3::Model::PutObjectRequest putObjectRequest;
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80 putObjectRequest.SetBucket(bucketName_.c_str());
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81 putObjectRequest.SetKey(path_.c_str());
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82
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83 std::shared_ptr<Aws::StringStream> stream = Aws::MakeShared<Aws::StringStream>(ALLOCATION_TAG, std::ios_base::in | std::ios_base::binary);
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84
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85 stream->rdbuf()->pubsetbuf(const_cast<char*>(data), size);
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86 stream->rdbuf()->pubseekpos(size);
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87 stream->seekg(0);
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88
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89 putObjectRequest.SetBody(stream);
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90 putObjectRequest.SetContentMD5(Aws::Utils::HashingUtils::Base64Encode(Aws::Utils::HashingUtils::CalculateMD5(*stream)));
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91
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92 auto result = client_.PutObject(putObjectRequest);
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93
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94 if (!result.IsSuccess())
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95 {
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96 throw StoragePluginException(std::string("error while writing file ") + path_ + ": response code = " + boost::lexical_cast<std::string>((int)result.GetError().GetResponseCode()) + " " + result.GetError().GetExceptionName().c_str() + " " + result.GetError().GetMessage().c_str());
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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
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102 class Reader : public IStorage::IReader
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103 {
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104 Aws::S3::S3Client client_;
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105 std::string bucketName_;
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106 std::list<std::string> paths_;
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107 std::string uuid_;
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108
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109 public:
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110 Reader(const Aws::S3::S3Client& client, const std::string& bucketName, const std::list<std::string>& paths, const char* uuid)
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111 : client_(client),
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112 bucketName_(bucketName),
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113 paths_(paths),
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114 uuid_(uuid)
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115 {
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116 }
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117
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118 virtual ~Reader()
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119 {
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120
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121 }
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123 virtual size_t GetSize()
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124 {
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125 std::string firstExceptionMessage;
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126
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127 for (auto& path: paths_)
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128 {
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129 try
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130 {
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131 return _GetSize(path);
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132 }
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133 catch (StoragePluginException& ex)
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134 {
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135 if (firstExceptionMessage.empty())
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136 {
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137 firstExceptionMessage = ex.what();
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138 }
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139 //ignore to retry
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140 }
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141 }
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142 throw StoragePluginException(firstExceptionMessage);
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143 }
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144
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145 virtual void ReadWhole(char* data, size_t size)
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146 {
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147 _Read(data, size, 0, false);
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148 }
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149
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150 virtual void ReadRange(char* data, size_t size, size_t fromOffset)
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151 {
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152 _Read(data, size, fromOffset, true);
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153 }
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154
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155 private:
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156
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157 size_t _GetSize(const std::string& path)
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158 {
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159 Aws::S3::Model::ListObjectsRequest listObjectRequest;
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160 listObjectRequest.SetBucket(bucketName_.c_str());
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161 listObjectRequest.SetPrefix(path.c_str());
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162
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163 auto result = client_.ListObjects(listObjectRequest);
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164
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165 if (result.IsSuccess())
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166 {
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167 Aws::Vector<Aws::S3::Model::Object> objectList =
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168 result.GetResult().GetContents();
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169
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170 if (objectList.size() == 1)
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171 {
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172 return objectList[0].GetSize();
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173 }
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174 else if (objectList.size() > 1)
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175 {
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176 throw StoragePluginException(std::string("error while reading file ") + path + ": multiple objet with same name !");
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177 }
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178 throw StoragePluginException(std::string("error while reading file ") + path + ": object not found !");
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179 }
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180 else
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181 {
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182 throw StoragePluginException(std::string("error while reading file ") + path + ": " + result.GetError().GetExceptionName().c_str() + " " + result.GetError().GetMessage().c_str());
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183 }
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184 }
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185
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186
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187 void _Read(char* data, size_t size, size_t fromOffset, bool useRange)
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188 {
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189 std::string firstExceptionMessage;
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190
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191 for (auto& path: paths_)
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192 {
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193 try
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194 {
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195 return __Read(path, data, size, fromOffset, useRange);
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196 }
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197 catch (StoragePluginException& ex)
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198 {
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199 if (firstExceptionMessage.empty())
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200 {
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201 firstExceptionMessage = ex.what();
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202 }
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203 //ignore to retry
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204 }
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205 }
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206 throw StoragePluginException(firstExceptionMessage);
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207 }
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208
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209 void __Read(const std::string& path, char* data, size_t size, size_t fromOffset, bool useRange)
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210 {
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211 Aws::S3::Model::GetObjectRequest getObjectRequest;
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212 getObjectRequest.SetBucket(bucketName_.c_str());
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213 getObjectRequest.SetKey(path.c_str());
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214
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215 if (useRange)
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216 {
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217 // https://developer.mozilla.org/en-US/docs/Web/HTTP/Range_requests
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218 std::string range = std::string("bytes=") + boost::lexical_cast<std::string>(fromOffset) + "-" + boost::lexical_cast<std::string>(fromOffset + size -1);
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219 getObjectRequest.SetRange(range.c_str());
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220 }
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221
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222 getObjectRequest.SetResponseStreamFactory(
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223 [data, size]()
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224 {
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225 std::unique_ptr<Aws::StringStream>
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226 istream(Aws::New<Aws::StringStream>(ALLOCATION_TAG));
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227
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228 istream->rdbuf()->pubsetbuf(static_cast<char*>(data),
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229 size);
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230
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231 return istream.release();
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232 });
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233
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234 // Get the object
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235 auto result = client_.GetObject(getObjectRequest);
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236 if (result.IsSuccess())
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237 {
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238 }
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239 else
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240 {
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241 throw StoragePluginException(std::string("error while reading file ") + path + ": response code = " + boost::lexical_cast<std::string>((int)result.GetError().GetResponseCode()) + " " + result.GetError().GetExceptionName().c_str() + " " + result.GetError().GetMessage().c_str());
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242 }
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243 }
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244
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245 };
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246
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247
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248
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249
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250
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251 const char* AwsS3StoragePluginFactory::GetStoragePluginName()
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252 {
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253 return "AWS S3 Storage";
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254 }
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255
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256
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257 static std::unique_ptr<Aws::Crt::ApiHandle> api_;
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258 static std::unique_ptr<Aws::SDKOptions> sdkOptions_;
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259
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260
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261 IStorage* AwsS3StoragePluginFactory::CreateStorage(const std::string& nameForLogs, const OrthancPlugins::OrthancConfiguration& orthancConfig)
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262 {
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263 if (sdkOptions_.get() != NULL)
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264 {
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265 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls, "Cannot initialize twice");
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266 }
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267
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268 api_.reset(new Aws::Crt::ApiHandle);
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269
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270 sdkOptions_.reset(new Aws::SDKOptions);
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271 sdkOptions_->cryptoOptions.initAndCleanupOpenSSL = false; // Done by the Orthanc framework
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272 sdkOptions_->httpOptions.initAndCleanupCurl = false; // Done by the Orthanc framework
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273
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274 Aws::InitAPI(*sdkOptions_);
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275
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276 bool enableLegacyStorageStructure;
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277 bool storageContainsUnknownFiles;
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278
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279 if (!orthancConfig.IsSection(GetConfigurationSectionName()))
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280 {
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281 OrthancPlugins::LogWarning(std::string(GetStoragePluginName()) + " plugin, section missing. Plugin is not enabled.");
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282 return nullptr;
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283 }
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284
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285 OrthancPlugins::OrthancConfiguration pluginSection;
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286 orthancConfig.GetSection(pluginSection, GetConfigurationSectionName());
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287
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288 if (!BaseStorage::ReadCommonConfiguration(enableLegacyStorageStructure, storageContainsUnknownFiles, pluginSection))
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289 {
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290 return nullptr;
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291 }
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292
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293 std::string bucketName;
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294 std::string region;
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295 std::string accessKey;
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296 std::string secretKey;
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297
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298 if (!pluginSection.LookupStringValue(bucketName, "BucketName"))
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299 {
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300 OrthancPlugins::LogError("AwsS3Storage/BucketName configuration missing. Unable to initialize plugin");
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301 return nullptr;
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302 }
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303
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304 if (!pluginSection.LookupStringValue(region, "Region"))
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305 {
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306 OrthancPlugins::LogError("AwsS3Storage/Region configuration missing. Unable to initialize plugin");
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307 return nullptr;
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308 }
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309
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310 const std::string endpoint = pluginSection.GetStringValue("Endpoint", "");
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311 const unsigned int connectTimeout = pluginSection.GetUnsignedIntegerValue("ConnectTimeout", 30);
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312 const unsigned int requestTimeout = pluginSection.GetUnsignedIntegerValue("RequestTimeout", 1200);
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313 const bool virtualAddressing = pluginSection.GetBooleanValue("VirtualAddressing", true);
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314 const std::string caFile = orthancConfig.GetStringValue("HttpsCACertificates", "");
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315
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316 try
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317 {
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318 Aws::SDKOptions options;
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319 Aws::InitAPI(options);
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320
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321 Aws::Client::ClientConfiguration configuration;
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322
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323 configuration.region = region.c_str();
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324 configuration.scheme = Aws::Http::Scheme::HTTPS;
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325 configuration.connectTimeoutMs = connectTimeout * 1000;
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326 configuration.requestTimeoutMs = requestTimeout * 1000;
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327 configuration.httpRequestTimeoutMs = requestTimeout * 1000;
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328
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329 if (!endpoint.empty())
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330 {
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331 configuration.endpointOverride = endpoint.c_str();
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332 }
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333
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334 if (!caFile.empty())
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335 {
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336 configuration.caFile = caFile;
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337 }
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338
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339 if (pluginSection.LookupStringValue(accessKey, "AccessKey") && pluginSection.LookupStringValue(secretKey, "SecretKey"))
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340 {
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341 OrthancPlugins::LogInfo("AWS S3 Storage: using credentials from the configuration file");
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342 Aws::Auth::AWSCredentials credentials(accessKey.c_str(), secretKey.c_str());
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343
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344 Aws::S3::S3Client client(credentials, configuration, Aws::Client::AWSAuthV4Signer::PayloadSigningPolicy::Never, virtualAddressing);
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345
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346 OrthancPlugins::LogInfo("AWS S3 storage initialized");
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347
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348 return new AwsS3StoragePlugin(nameForLogs, client, bucketName, enableLegacyStorageStructure, storageContainsUnknownFiles);
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349 }
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350 else
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351 {
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352 // when using default credentials, credentials are not checked at startup but only the first time you try to access the bucket !
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353 OrthancPlugins::LogInfo("AWS S3 Storage: using default credentials provider");
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354 Aws::S3::S3Client client(configuration, Aws::Client::AWSAuthV4Signer::PayloadSigningPolicy::Never, virtualAddressing);
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355
53
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356 OrthancPlugins::LogInfo("AWS S3 storage initialized");
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357
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358 return new AwsS3StoragePlugin(nameForLogs, client, bucketName, enableLegacyStorageStructure, storageContainsUnknownFiles);
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359 }
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360 }
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361 catch (const std::exception& e)
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362 {
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363 OrthancPlugins::LogError(std::string("AWS S3 Storage plugin: failed to initialize plugin: ") + e.what());
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364 return nullptr;
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365 }
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366
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367 }
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368
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369
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370 AwsS3StoragePlugin::~AwsS3StoragePlugin()
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371 {
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372 assert(sdkOptions_.get() != NULL);
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373 Aws::ShutdownAPI(*sdkOptions_);
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374 api_.reset();
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375 }
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376
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377
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378 AwsS3StoragePlugin::AwsS3StoragePlugin(const std::string& nameForLogs, const Aws::S3::S3Client& client, const std::string& bucketName, bool enableLegacyStorageStructure, bool storageContainsUnknownFiles)
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379 : BaseStorage(nameForLogs, enableLegacyStorageStructure),
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380 client_(client),
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381 bucketName_(bucketName),
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382 storageContainsUnknownFiles_(storageContainsUnknownFiles)
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383 {
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384 }
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385
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386 IStorage::IWriter* AwsS3StoragePlugin::GetWriterForObject(const char* uuid, OrthancPluginContentType type, bool encryptionEnabled)
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387 {
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388 return new Writer(client_, bucketName_, GetPath(uuid, type, encryptionEnabled));
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389 }
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390
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391 IStorage::IReader* AwsS3StoragePlugin::GetReaderForObject(const char* uuid, OrthancPluginContentType type, bool encryptionEnabled)
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392 {
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393 std::list<std::string> paths;
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394 paths.push_back(GetPath(uuid, type, encryptionEnabled, false));
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395 if (storageContainsUnknownFiles_)
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396 {
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397 paths.push_back(GetPath(uuid, type, encryptionEnabled, true));
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398 }
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399
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400 return new Reader(client_, bucketName_, paths, uuid);
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401 }
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402
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403 void AwsS3StoragePlugin::DeleteObject(const char* uuid, OrthancPluginContentType type, bool encryptionEnabled)
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404 {
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405 std::string firstExceptionMessage;
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406
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407 std::list<std::string> paths;
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408 paths.push_back(GetPath(uuid, type, encryptionEnabled, false));
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409 if (storageContainsUnknownFiles_)
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410 {
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411 paths.push_back(GetPath(uuid, type, encryptionEnabled, true));
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412 }
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413
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414 // DeleteObject succeeds even if the file does not exist -> we need to try to delete every path
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415 for (auto& path: paths)
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416 {
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417 Aws::S3::Model::DeleteObjectRequest deleteObjectRequest;
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418 deleteObjectRequest.SetBucket(bucketName_.c_str());
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419 deleteObjectRequest.SetKey(path.c_str());
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420
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421 auto result = client_.DeleteObject(deleteObjectRequest);
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422
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423 if (!result.IsSuccess() && firstExceptionMessage.empty())
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424 {
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425 firstExceptionMessage = std::string("error while deleting file ") + path + ": response code = " + boost::lexical_cast<std::string>((int)result.GetError().GetResponseCode()) + " " + result.GetError().GetExceptionName().c_str() + " " + result.GetError().GetMessage().c_str();
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426 }
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427 }
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428
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429 if (!firstExceptionMessage.empty())
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430 {
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431 throw StoragePluginException(firstExceptionMessage);
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432 }
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433 }