Mercurial > hg > orthanc
annotate Core/FileStorage/StorageAccessor.cpp @ 1618:cc80f0620f82 Orthanc-0.9.4
Orthanc-0.9.4
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 16 Sep 2015 16:49:32 +0200 |
parents | 2c7d5eb588e6 |
children | 55d52567bebb |
rev | line source |
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221 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
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3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
221 | 5 * |
6 * This program is free software: you can redistribute it and/or | |
7 * modify it under the terms of the GNU General Public License as | |
8 * published by the Free Software Foundation, either version 3 of the | |
9 * License, or (at your option) any later version. | |
10 * | |
11 * In addition, as a special exception, the copyright holders of this | |
12 * program give permission to link the code of its release with the | |
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
14 * that use the same license as the "OpenSSL" library), and distribute | |
15 * the linked executables. You must obey the GNU General Public License | |
16 * in all respects for all of the code used other than "OpenSSL". If you | |
17 * modify file(s) with this exception, you may extend this exception to | |
18 * your version of the file(s), but you are not obligated to do so. If | |
19 * you do not wish to do so, delete this exception statement from your | |
20 * version. If you delete this exception statement from all source files | |
21 * in the program, then also delete it here. | |
22 * | |
23 * This program is distributed in the hope that it will be useful, but | |
24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
26 * General Public License for more details. | |
27 * | |
28 * You should have received a copy of the GNU General Public License | |
29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
30 **/ | |
31 | |
32 | |
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33 #include "../PrecompiledHeaders.h" |
221 | 34 #include "StorageAccessor.h" |
35 | |
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36 #include "../Compression/ZlibCompressor.h" |
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37 #include "../OrthancException.h" |
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38 #include "../HttpServer/HttpStreamTranscoder.h" |
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39 |
221 | 40 namespace Orthanc |
41 { | |
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42 FileInfo StorageAccessor::Write(const void* data, |
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43 size_t size, |
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44 FileContentType type, |
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45 CompressionType compression, |
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46 bool storeMd5) |
221 | 47 { |
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48 std::string uuid = Toolbox::GenerateUuid(); |
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49 |
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50 std::string md5; |
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51 |
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52 if (storeMd5) |
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53 { |
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54 Toolbox::ComputeMD5(md5, data, size); |
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55 } |
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56 |
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57 switch (compression) |
221 | 58 { |
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59 case CompressionType_None: |
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60 { |
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61 area_.Create(uuid, data, size, type); |
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62 return FileInfo(uuid, type, size, md5); |
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63 } |
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64 |
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65 case CompressionType_ZlibWithSize: |
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66 { |
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67 ZlibCompressor zlib; |
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68 |
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69 std::string compressed; |
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70 zlib.Compress(compressed, data, size); |
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71 |
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72 std::string compressedMD5; |
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73 |
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74 if (storeMd5) |
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75 { |
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76 Toolbox::ComputeMD5(compressedMD5, compressed); |
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77 } |
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78 |
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79 if (compressed.size() > 0) |
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80 { |
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81 area_.Create(uuid, &compressed[0], compressed.size(), type); |
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82 } |
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83 else |
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84 { |
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85 area_.Create(uuid, NULL, 0, type); |
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86 } |
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87 |
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88 return FileInfo(uuid, type, size, md5, |
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89 CompressionType_ZlibWithSize, compressed.size(), compressedMD5); |
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90 } |
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91 |
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92 default: |
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93 throw OrthancException(ErrorCode_NotImplemented); |
221 | 94 } |
95 } | |
96 | |
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97 |
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98 void StorageAccessor::Read(std::string& content, |
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99 const FileInfo& info) |
221 | 100 { |
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101 switch (info.GetCompressionType()) |
221 | 102 { |
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103 case CompressionType_None: |
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104 { |
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105 area_.Read(content, info.GetUuid(), info.GetContentType()); |
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106 break; |
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107 } |
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108 |
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109 case CompressionType_ZlibWithSize: |
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110 { |
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111 ZlibCompressor zlib; |
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112 |
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113 std::string compressed; |
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114 area_.Read(compressed, info.GetUuid(), info.GetContentType()); |
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115 IBufferCompressor::Uncompress(content, zlib, compressed); |
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116 break; |
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117 } |
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118 |
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119 default: |
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120 { |
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121 throw OrthancException(ErrorCode_NotImplemented); |
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122 } |
221 | 123 } |
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124 |
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125 // TODO Check the validity of the uncompressed MD5? |
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126 } |
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127 |
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128 |
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129 void StorageAccessor::SetupSender(BufferHttpSender& sender, |
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130 const FileInfo& info) |
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131 { |
1550 | 132 area_.Read(sender.GetBuffer(), info.GetUuid(), info.GetContentType()); |
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133 sender.SetContentType(GetMimeType(info.GetContentType())); |
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134 sender.SetContentFilename(info.GetUuid() + std::string(GetFileExtension(info.GetContentType()))); |
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135 } |
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136 |
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137 |
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138 void StorageAccessor::AnswerFile(HttpOutput& output, |
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139 const FileInfo& info) |
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140 { |
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141 BufferHttpSender sender; |
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142 SetupSender(sender, info); |
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143 |
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144 HttpStreamTranscoder transcoder(sender, info.GetCompressionType()); |
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145 output.Answer(transcoder); |
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146 } |
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147 |
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148 |
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149 void StorageAccessor::AnswerFile(RestApiOutput& output, |
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150 const FileInfo& info) |
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151 { |
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152 BufferHttpSender sender; |
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153 SetupSender(sender, info); |
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154 |
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155 HttpStreamTranscoder transcoder(sender, info.GetCompressionType()); |
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156 output.AnswerStream(transcoder); |
221 | 157 } |
158 } |