Mercurial > hg > orthanc
annotate OrthancFramework/Sources/HttpServer/HttpOutput.cpp @ 4275:d7a50b7b8466
Dynamically access and/or change the verbosity of logging categories with the REST API
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 03 Nov 2020 14:41:27 +0100 |
| parents | 2d5209153b32 |
| children | db3932f9660d |
| rev | line source |
|---|---|
| 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 | |
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8 * modify it under the terms of the GNU Lesser General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
| 136 | 11 * |
| 0 | 12 * This program is distributed in the hope that it will be useful, but |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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15 * Lesser General Public License for more details. |
| 0 | 16 * |
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17 * You should have received a copy of the GNU Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
| 0 | 20 **/ |
| 21 | |
| 22 | |
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23 #include "../PrecompiledHeaders.h" |
| 0 | 24 #include "HttpOutput.h" |
| 25 | |
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26 #include "../ChunkedBuffer.h" |
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27 #include "../Compression/GzipCompressor.h" |
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28 #include "../Compression/ZlibCompressor.h" |
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29 #include "../Logging.h" |
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30 #include "../OrthancException.h" |
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31 #include "../Toolbox.h" |
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32 |
| 324 | 33 #include <iostream> |
| 0 | 34 #include <vector> |
| 35 #include <stdio.h> | |
| 36 #include <boost/lexical_cast.hpp> | |
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37 |
| 0 | 38 |
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39 #if ORTHANC_ENABLE_CIVETWEB == 1 |
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40 # if !defined(CIVETWEB_HAS_DISABLE_KEEP_ALIVE) |
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41 # error Macro CIVETWEB_HAS_DISABLE_KEEP_ALIVE must be defined |
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42 # endif |
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43 #endif |
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44 |
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45 |
| 59 | 46 namespace Orthanc |
| 0 | 47 { |
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48 HttpOutput::StateMachine::StateMachine(IHttpOutputStream& stream, |
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49 bool isKeepAlive) : |
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50 stream_(stream), |
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51 state_(State_WritingHeader), |
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52 status_(HttpStatus_200_Ok), |
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53 hasContentLength_(false), |
| 4201 | 54 contentLength_(0), |
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55 contentPosition_(0), |
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56 keepAlive_(isKeepAlive) |
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57 { |
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58 } |
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59 |
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60 HttpOutput::StateMachine::~StateMachine() |
| 910 | 61 { |
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62 if (state_ != State_Done) |
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63 { |
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64 //asm volatile ("int3;"); |
| 1200 | 65 //LOG(ERROR) << "This HTTP answer does not contain any body"; |
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66 } |
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67 |
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68 if (hasContentLength_ && contentPosition_ != contentLength_) |
| 910 | 69 { |
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70 LOG(ERROR) << "This HTTP answer has not sent the proper number of bytes in its body"; |
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71 } |
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72 } |
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73 |
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74 |
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75 void HttpOutput::StateMachine::SetHttpStatus(HttpStatus status) |
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76 { |
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77 if (state_ != State_WritingHeader) |
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78 { |
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79 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
| 910 | 80 } |
| 81 | |
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82 status_ = status; |
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83 } |
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84 |
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85 |
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86 void HttpOutput::StateMachine::SetContentLength(uint64_t length) |
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87 { |
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88 if (state_ != State_WritingHeader) |
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89 { |
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90 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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91 } |
| 910 | 92 |
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93 hasContentLength_ = true; |
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94 contentLength_ = length; |
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95 } |
| 910 | 96 |
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97 void HttpOutput::StateMachine::SetContentType(const char* contentType) |
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98 { |
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99 AddHeader("Content-Type", contentType); |
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100 } |
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101 |
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102 void HttpOutput::StateMachine::SetContentFilename(const char* filename) |
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103 { |
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104 // TODO Escape double quotes |
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105 AddHeader("Content-Disposition", "filename=\"" + std::string(filename) + "\""); |
| 910 | 106 } |
| 107 | |
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108 void HttpOutput::StateMachine::SetCookie(const std::string& cookie, |
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109 const std::string& value) |
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110 { |
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111 if (state_ != State_WritingHeader) |
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112 { |
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113 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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114 } |
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115 |
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116 // TODO Escape "=" characters |
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117 AddHeader("Set-Cookie", cookie + "=" + value); |
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118 } |
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119 |
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120 |
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121 void HttpOutput::StateMachine::AddHeader(const std::string& header, |
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122 const std::string& value) |
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123 { |
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124 if (state_ != State_WritingHeader) |
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125 { |
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126 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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127 } |
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128 |
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129 headers_.push_back(header + ": " + value + "\r\n"); |
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130 } |
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131 |
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132 void HttpOutput::StateMachine::ClearHeaders() |
| 910 | 133 { |
| 134 if (state_ != State_WritingHeader) | |
| 135 { | |
| 136 throw OrthancException(ErrorCode_BadSequenceOfCalls); | |
| 137 } | |
| 138 | |
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139 headers_.clear(); |
| 910 | 140 } |
| 141 | |
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142 void HttpOutput::StateMachine::SendBody(const void* buffer, size_t length) |
| 910 | 143 { |
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144 if (state_ == State_Done) |
| 910 | 145 { |
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146 if (length == 0) |
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147 { |
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148 return; |
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149 } |
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150 else |
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151 { |
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152 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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153 "Because of keep-alive connections, the entire body must " |
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154 "be sent at once or Content-Length must be given"); |
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155 } |
| 910 | 156 } |
| 157 | |
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158 if (state_ == State_WritingMultipart) |
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159 { |
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160 throw OrthancException(ErrorCode_InternalError); |
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161 } |
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162 |
| 910 | 163 if (state_ == State_WritingHeader) |
| 164 { | |
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165 // Send the HTTP header before writing the body |
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166 |
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167 stream_.OnHttpStatusReceived(status_); |
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168 |
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169 std::string s = "HTTP/1.1 " + |
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170 boost::lexical_cast<std::string>(status_) + |
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171 " " + std::string(EnumerationToString(status_)) + |
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172 "\r\n"; |
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173 |
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174 if (keepAlive_) |
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175 { |
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176 s += "Connection: keep-alive\r\n"; |
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177 } |
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178 else |
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179 { |
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180 s += "Connection: close\r\n"; |
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181 } |
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182 |
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183 for (std::list<std::string>::const_iterator |
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184 it = headers_.begin(); it != headers_.end(); ++it) |
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185 { |
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186 s += *it; |
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187 } |
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188 |
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189 if (status_ != HttpStatus_200_Ok) |
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190 { |
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191 hasContentLength_ = false; |
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192 } |
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193 |
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194 uint64_t contentLength = (hasContentLength_ ? contentLength_ : length); |
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195 s += "Content-Length: " + boost::lexical_cast<std::string>(contentLength) + "\r\n\r\n"; |
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196 |
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197 stream_.Send(true, s.c_str(), s.size()); |
| 910 | 198 state_ = State_WritingBody; |
| 199 } | |
| 200 | |
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201 if (hasContentLength_ && |
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202 contentPosition_ + length > contentLength_) |
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203 { |
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204 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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205 "The body size exceeds what was declared with SetContentSize()"); |
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206 } |
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207 |
| 910 | 208 if (length > 0) |
| 209 { | |
| 911 | 210 stream_.Send(false, buffer, length); |
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211 contentPosition_ += length; |
| 330 | 212 } |
| 213 | |
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214 if (!hasContentLength_ || |
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215 contentPosition_ == contentLength_) |
| 330 | 216 { |
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217 state_ = State_Done; |
| 330 | 218 } |
| 219 } | |
| 220 | |
| 207 | 221 |
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222 void HttpOutput::StateMachine::CloseBody() |
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223 { |
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224 switch (state_) |
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225 { |
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226 case State_WritingHeader: |
| 1522 | 227 SetContentLength(0); |
| 228 SendBody(NULL, 0); | |
| 229 break; | |
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230 |
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231 case State_WritingBody: |
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232 if (!hasContentLength_ || |
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233 contentPosition_ == contentLength_) |
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234 { |
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235 state_ = State_Done; |
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236 } |
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237 else |
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238 { |
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239 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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240 "The body size has not reached what was declared with SetContentSize()"); |
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241 } |
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242 |
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243 break; |
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244 |
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245 case State_WritingMultipart: |
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246 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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247 "Cannot invoke CloseBody() with multipart outputs"); |
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248 |
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249 case State_Done: |
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250 return; // Ignore |
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251 |
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252 default: |
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253 throw OrthancException(ErrorCode_InternalError); |
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254 } |
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255 } |
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256 |
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257 |
| 1517 | 258 HttpCompression HttpOutput::GetPreferredCompression(size_t bodySize) const |
| 259 { | |
| 260 #if 0 | |
| 261 // TODO Do not compress small files? | |
| 262 if (bodySize < 512) | |
| 263 { | |
| 264 return HttpCompression_None; | |
| 265 } | |
| 266 #endif | |
| 267 | |
| 268 // Prefer "gzip" over "deflate" if the choice is offered | |
| 269 | |
| 270 if (isGzipAllowed_) | |
| 271 { | |
| 272 return HttpCompression_Gzip; | |
| 273 } | |
| 274 else if (isDeflateAllowed_) | |
| 275 { | |
| 276 return HttpCompression_Deflate; | |
| 277 } | |
| 278 else | |
| 279 { | |
| 280 return HttpCompression_None; | |
| 281 } | |
| 282 } | |
| 283 | |
| 284 | |
|
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285 void HttpOutput::SendMethodNotAllowed(const std::string& allowed) |
| 0 | 286 { |
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287 stateMachine_.ClearHeaders(); |
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288 stateMachine_.SetHttpStatus(HttpStatus_405_MethodNotAllowed); |
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289 stateMachine_.AddHeader("Allow", allowed); |
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290 stateMachine_.SendBody(NULL, 0); |
| 0 | 291 } |
| 292 | |
| 293 | |
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294 void HttpOutput::SendStatus(HttpStatus status, |
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295 const char* message, |
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296 size_t messageSize) |
| 0 | 297 { |
| 1954 | 298 if (status == HttpStatus_301_MovedPermanently || |
| 3425 | 299 //status == HttpStatus_401_Unauthorized || |
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300 status == HttpStatus_405_MethodNotAllowed) |
| 0 | 301 { |
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302 throw OrthancException(ErrorCode_ParameterOutOfRange, |
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303 "Please use the dedicated methods to this HTTP status code in HttpOutput"); |
| 0 | 304 } |
| 305 | |
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306 stateMachine_.SetHttpStatus(status); |
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307 stateMachine_.SendBody(message, messageSize); |
| 339 | 308 } |
| 309 | |
| 310 | |
| 0 | 311 void HttpOutput::Redirect(const std::string& path) |
| 312 { | |
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313 stateMachine_.ClearHeaders(); |
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314 stateMachine_.SetHttpStatus(HttpStatus_301_MovedPermanently); |
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315 stateMachine_.AddHeader("Location", path); |
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316 stateMachine_.SendBody(NULL, 0); |
| 0 | 317 } |
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318 |
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319 |
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320 void HttpOutput::SendUnauthorized(const std::string& realm) |
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321 { |
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322 stateMachine_.ClearHeaders(); |
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323 stateMachine_.SetHttpStatus(HttpStatus_401_Unauthorized); |
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324 stateMachine_.AddHeader("WWW-Authenticate", "Basic realm=\"" + realm + "\""); |
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325 stateMachine_.SendBody(NULL, 0); |
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326 } |
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327 |
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328 |
| 1521 | 329 void HttpOutput::Answer(const void* buffer, |
| 330 size_t length) | |
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331 { |
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332 if (length == 0) |
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333 { |
| 1521 | 334 AnswerEmpty(); |
| 335 return; | |
| 336 } | |
| 337 | |
| 338 HttpCompression compression = GetPreferredCompression(length); | |
| 339 | |
| 340 if (compression == HttpCompression_None) | |
| 341 { | |
| 342 stateMachine_.SetContentLength(length); | |
| 343 stateMachine_.SendBody(buffer, length); | |
| 344 return; | |
| 345 } | |
| 346 | |
| 347 std::string compressed, encoding; | |
| 348 | |
| 349 switch (compression) | |
| 350 { | |
| 351 case HttpCompression_Deflate: | |
| 352 { | |
| 353 encoding = "deflate"; | |
| 354 ZlibCompressor compressor; | |
| 355 // Do not prefix the buffer with its uncompressed size, to be compatible with "deflate" | |
| 356 compressor.SetPrefixWithUncompressedSize(false); | |
| 357 compressor.Compress(compressed, buffer, length); | |
| 358 break; | |
| 359 } | |
| 360 | |
| 361 case HttpCompression_Gzip: | |
| 362 { | |
| 363 encoding = "gzip"; | |
| 364 GzipCompressor compressor; | |
| 365 compressor.Compress(compressed, buffer, length); | |
| 366 break; | |
| 367 } | |
| 368 | |
| 369 default: | |
| 370 throw OrthancException(ErrorCode_InternalError); | |
| 371 } | |
| 372 | |
| 373 LOG(TRACE) << "Compressing a HTTP answer using " << encoding; | |
| 374 | |
| 375 // The body is empty, do not use HTTP compression | |
| 376 if (compressed.size() == 0) | |
| 377 { | |
| 378 AnswerEmpty(); | |
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379 } |
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380 else |
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381 { |
| 1521 | 382 stateMachine_.AddHeader("Content-Encoding", encoding); |
| 383 stateMachine_.SetContentLength(compressed.size()); | |
| 384 stateMachine_.SendBody(compressed.c_str(), compressed.size()); | |
| 385 } | |
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386 |
| 1521 | 387 stateMachine_.CloseBody(); |
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388 } |
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389 |
| 1521 | 390 |
| 391 void HttpOutput::Answer(const std::string& str) | |
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392 { |
| 1521 | 393 Answer(str.size() == 0 ? NULL : str.c_str(), str.size()); |
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394 } |
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395 |
| 1521 | 396 |
| 397 void HttpOutput::AnswerEmpty() | |
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398 { |
|
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399 stateMachine_.CloseBody(); |
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400 } |
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401 |
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402 |
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403 void HttpOutput::StateMachine::CheckHeadersCompatibilityWithMultipart() const |
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404 { |
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405 for (std::list<std::string>::const_iterator |
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406 it = headers_.begin(); it != headers_.end(); ++it) |
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407 { |
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408 if (!Toolbox::StartsWith(*it, "Set-Cookie: ")) |
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409 { |
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410 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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411 "The only headers that can be set in multipart answers " |
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412 "are Set-Cookie (here: " + *it + " is set)"); |
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413 } |
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414 } |
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415 } |
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416 |
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417 |
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418 static void PrepareMultipartMainHeader(std::string& boundary, |
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419 std::string& contentTypeHeader, |
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420 const std::string& subType, |
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421 const std::string& contentType) |
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422 { |
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423 if (subType != "mixed" && |
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424 subType != "related") |
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425 { |
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426 throw OrthancException(ErrorCode_ParameterOutOfRange); |
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427 } |
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428 |
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429 /** |
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430 * Fix for issue 54 ("Decide what to do wrt. quoting of multipart |
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431 * answers"). The "type" parameter in the "Content-Type" HTTP |
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432 * header must be quoted if it contains a forward slash "/". This |
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433 * is necessary for DICOMweb compatibility with OsiriX, but breaks |
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434 * compatibility with old releases of the client in the Orthanc |
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435 * DICOMweb plugin <= 0.3 (releases >= 0.4 work fine). |
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436 * |
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437 * Full history is available at the following locations: |
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438 * - In changeset 2248:69b0f4e8a49b: |
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439 * # hg history -v -r 2248 |
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440 * - https://bitbucket.org/sjodogne/orthanc/issues/54/ |
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441 * - https://groups.google.com/d/msg/orthanc-users/65zhIM5xbKI/TU5Q1_LhAwAJ |
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442 **/ |
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443 std::string tmp; |
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444 if (contentType.find('/') == std::string::npos) |
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445 { |
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446 // No forward slash in the content type |
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447 tmp = contentType; |
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448 } |
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449 else |
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450 { |
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451 // Quote the content type because of the forward slash |
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452 tmp = "\"" + contentType + "\""; |
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453 } |
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454 |
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455 boundary = Toolbox::GenerateUuid() + "-" + Toolbox::GenerateUuid(); |
| 3616 | 456 |
| 457 /** | |
| 458 * Fix for issue #165: "Encapsulation boundaries must not appear | |
| 459 * within the encapsulations, and must be no longer than 70 | |
| 460 * characters, not counting the two leading hyphens." | |
| 461 * https://tools.ietf.org/html/rfc1521 | |
| 462 * https://bitbucket.org/sjodogne/orthanc/issues/165/ | |
| 463 **/ | |
| 464 if (boundary.size() != 36 + 1 + 36) // one UUID contains 36 characters | |
| 465 { | |
| 466 throw OrthancException(ErrorCode_InternalError); | |
| 467 } | |
| 468 | |
| 469 boundary = boundary.substr(0, 70); | |
| 470 | |
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471 contentTypeHeader = ("multipart/" + subType + "; type=" + tmp + "; boundary=" + boundary); |
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472 } |
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473 |
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474 |
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475 void HttpOutput::StateMachine::StartMultipart(const std::string& subType, |
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476 const std::string& contentType) |
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477 { |
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478 if (state_ != State_WritingHeader) |
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479 { |
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480 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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481 } |
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482 |
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483 if (status_ != HttpStatus_200_Ok) |
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484 { |
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485 SendBody(NULL, 0); |
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486 return; |
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487 } |
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488 |
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489 stream_.OnHttpStatusReceived(status_); |
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490 |
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491 std::string header = "HTTP/1.1 200 OK\r\n"; |
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492 |
|
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493 if (keepAlive_) |
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494 { |
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495 #if ORTHANC_ENABLE_MONGOOSE == 1 |
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496 throw OrthancException(ErrorCode_NotImplemented, |
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497 "Multipart answers are not implemented together " |
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498 "with keep-alive connections if using Mongoose"); |
|
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499 |
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500 #elif ORTHANC_ENABLE_CIVETWEB == 1 |
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501 # if CIVETWEB_HAS_DISABLE_KEEP_ALIVE == 1 |
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502 // Turn off Keep-Alive for multipart answers |
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503 // https://github.com/civetweb/civetweb/issues/727 |
|
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504 stream_.DisableKeepAlive(); |
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505 header += "Connection: close\r\n"; |
|
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506 # else |
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507 // The function "mg_disable_keep_alive()" is not available, |
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508 // let's continue with Keep-Alive. Performance of WADO-RS will |
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509 // decrease. |
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510 header += "Connection: keep-alive\r\n"; |
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511 # endif |
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512 |
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513 #else |
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514 # error Please support your embedded Web server here |
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515 #endif |
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516 } |
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517 else |
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518 { |
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519 header += "Connection: close\r\n"; |
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520 } |
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521 |
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522 // Possibly add the cookies |
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523 CheckHeadersCompatibilityWithMultipart(); |
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524 |
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525 for (std::list<std::string>::const_iterator |
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526 it = headers_.begin(); it != headers_.end(); ++it) |
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527 { |
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528 header += *it; |
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529 } |
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530 |
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531 std::string contentTypeHeader; |
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532 PrepareMultipartMainHeader(multipartBoundary_, contentTypeHeader, subType, contentType); |
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533 multipartContentType_ = contentType; |
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534 header += ("Content-Type: " + contentTypeHeader + "\r\n\r\n"); |
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535 |
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536 stream_.Send(true, header.c_str(), header.size()); |
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537 state_ = State_WritingMultipart; |
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538 } |
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539 |
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540 |
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541 static void PrepareMultipartItemHeader(std::string& target, |
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542 size_t length, |
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543 const std::map<std::string, std::string>& headers, |
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544 const std::string& boundary, |
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545 const std::string& contentType) |
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546 { |
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547 target = "--" + boundary + "\r\n"; |
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548 |
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549 bool hasContentType = false; |
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550 bool hasContentLength = false; |
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551 bool hasMimeVersion = false; |
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552 |
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553 for (std::map<std::string, std::string>::const_iterator |
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554 it = headers.begin(); it != headers.end(); ++it) |
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555 { |
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556 target += it->first + ": " + it->second + "\r\n"; |
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557 |
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|
558 std::string tmp; |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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559 Toolbox::ToLowerCase(tmp, it->first); |
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OrthancPluginSendMultipartItem2 for DICOMweb
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560 |
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OrthancPluginSendMultipartItem2 for DICOMweb
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561 if (tmp == "content-type") |
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OrthancPluginSendMultipartItem2 for DICOMweb
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562 { |
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OrthancPluginSendMultipartItem2 for DICOMweb
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563 hasContentType = true; |
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OrthancPluginSendMultipartItem2 for DICOMweb
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564 } |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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diff
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|
565 |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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diff
changeset
|
566 if (tmp == "content-length") |
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OrthancPluginSendMultipartItem2 for DICOMweb
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567 { |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
568 hasContentLength = true; |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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569 } |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
570 |
|
5cf2bd0abfa2
OrthancPluginSendMultipartItem2 for DICOMweb
Sebastien Jodogne <s.jodogne@gmail.com>
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diff
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|
571 if (tmp == "mime-version") |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
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572 { |
|
5cf2bd0abfa2
OrthancPluginSendMultipartItem2 for DICOMweb
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573 hasMimeVersion = true; |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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574 } |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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|
575 } |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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diff
changeset
|
576 |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
Sebastien Jodogne <s.jodogne@gmail.com>
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|
577 if (!hasContentType) |
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OrthancPluginSendMultipartItem2 for DICOMweb
Sebastien Jodogne <s.jodogne@gmail.com>
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578 { |
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579 target += "Content-Type: " + contentType + "\r\n"; |
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1882
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OrthancPluginSendMultipartItem2 for DICOMweb
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580 } |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
581 |
|
5cf2bd0abfa2
OrthancPluginSendMultipartItem2 for DICOMweb
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diff
changeset
|
582 if (!hasContentLength) |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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583 { |
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|
584 target += "Content-Length: " + boost::lexical_cast<std::string>(length) + "\r\n"; |
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OrthancPluginSendMultipartItem2 for DICOMweb
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585 } |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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diff
changeset
|
586 |
|
5cf2bd0abfa2
OrthancPluginSendMultipartItem2 for DICOMweb
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diff
changeset
|
587 if (!hasMimeVersion) |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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588 { |
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589 target += "MIME-Version: 1.0\r\n\r\n"; |
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590 } |
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591 } |
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don't open a multipart stream if plugin only sends one part
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changeset
|
592 |
|
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593 |
|
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594 void HttpOutput::StateMachine::SendMultipartItem(const void* item, |
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595 size_t length, |
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596 const std::map<std::string, std::string>& headers) |
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597 { |
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598 if (state_ != State_WritingMultipart) |
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599 { |
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600 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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601 } |
|
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|
602 |
|
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603 std::string header; |
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604 PrepareMultipartItemHeader(header, length, headers, multipartBoundary_, multipartContentType_); |
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605 stream_.Send(false, header.c_str(), header.size()); |
|
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|
606 |
|
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Plugins can send answers as multipart messages
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607 if (length > 0) |
|
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608 { |
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Plugins can send answers as multipart messages
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609 stream_.Send(false, item, length); |
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610 } |
|
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Plugins can send answers as multipart messages
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changeset
|
611 |
|
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612 stream_.Send(false, "\r\n", 2); |
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613 } |
|
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|
614 |
|
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changeset
|
615 |
|
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616 void HttpOutput::StateMachine::CloseMultipart() |
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617 { |
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618 if (state_ != State_WritingMultipart) |
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|
619 { |
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620 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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621 } |
|
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622 |
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623 // The two lines below might throw an exception, if the client has |
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624 // closed the connection. Such an error is ignored. |
|
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625 try |
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|
626 { |
|
1832
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Fix formatting of multipart HTTP answers
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|
627 std::string header = "--" + multipartBoundary_ + "--\r\n"; |
|
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628 stream_.Send(false, header.c_str(), header.size()); |
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629 } |
|
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|
630 catch (OrthancException&) |
|
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631 { |
|
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|
632 } |
|
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|
633 |
|
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|
634 state_ = State_Done; |
|
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635 } |
|
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|
636 |
|
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|
637 |
|
3380
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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638 static void AnswerStreamAsBuffer(HttpOutput& output, |
|
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639 IHttpStreamAnswer& stream) |
|
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640 { |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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641 ChunkedBuffer buffer; |
|
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642 |
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643 while (stream.ReadNextChunk()) |
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644 { |
|
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645 if (stream.GetChunkSize() > 0) |
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646 { |
|
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647 buffer.AddChunk(stream.GetChunkContent(), stream.GetChunkSize()); |
|
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648 } |
|
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649 } |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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650 |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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changeset
|
651 std::string s; |
|
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652 buffer.Flatten(s); |
|
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|
653 |
|
0528a6c36f3d
HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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654 output.SetContentType(stream.GetContentType()); |
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655 |
|
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|
656 std::string filename; |
|
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657 if (stream.HasContentFilename(filename)) |
|
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658 { |
|
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|
659 output.SetContentFilename(filename.c_str()); |
|
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changeset
|
660 } |
|
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|
661 |
|
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|
662 output.Answer(s); |
|
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|
663 } |
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664 |
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665 |
|
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666 void HttpOutput::Answer(IHttpStreamAnswer& stream) |
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667 { |
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668 HttpCompression compression = stream.SetupHttpCompression(isGzipAllowed_, isDeflateAllowed_); |
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669 |
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670 switch (compression) |
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671 { |
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672 case HttpCompression_None: |
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673 { |
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674 if (isGzipAllowed_ || isDeflateAllowed_) |
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675 { |
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676 // New in Orthanc 1.5.7: Compress streams without built-in |
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677 // compression, if requested by the "Accept-Encoding" HTTP |
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678 // header |
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679 AnswerStreamAsBuffer(*this, stream); |
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680 return; |
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681 } |
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682 |
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|
683 break; |
|
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684 } |
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685 |
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686 case HttpCompression_Gzip: |
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687 stateMachine_.AddHeader("Content-Encoding", "gzip"); |
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688 break; |
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689 |
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690 case HttpCompression_Deflate: |
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691 stateMachine_.AddHeader("Content-Encoding", "deflate"); |
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692 break; |
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|
693 |
|
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694 default: |
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695 throw OrthancException(ErrorCode_ParameterOutOfRange); |
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696 } |
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|
697 |
|
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698 stateMachine_.SetContentLength(stream.GetContentLength()); |
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699 |
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700 std::string contentType = stream.GetContentType(); |
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701 if (contentType.empty()) |
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702 { |
|
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703 contentType = MIME_BINARY; |
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704 } |
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|
705 |
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|
706 stateMachine_.SetContentType(contentType.c_str()); |
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|
707 |
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|
708 std::string filename; |
|
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709 if (stream.HasContentFilename(filename)) |
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|
710 { |
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711 SetContentFilename(filename.c_str()); |
|
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|
712 } |
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|
713 |
|
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714 while (stream.ReadNextChunk()) |
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|
715 { |
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716 stateMachine_.SendBody(stream.GetChunkContent(), |
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717 stream.GetChunkSize()); |
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718 } |
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|
719 |
|
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|
720 stateMachine_.CloseBody(); |
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721 } |
|
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|
722 |
|
3528
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|
723 |
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|
724 void HttpOutput::AnswerMultipartWithoutChunkedTransfer( |
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725 const std::string& subType, |
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726 const std::string& contentType, |
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727 const std::vector<const void*>& parts, |
|
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|
728 const std::vector<size_t>& sizes, |
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729 const std::vector<const std::map<std::string, std::string>*>& headers) |
|
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|
730 { |
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|
731 if (parts.size() != sizes.size()) |
|
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|
732 { |
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733 throw OrthancException(ErrorCode_ParameterOutOfRange); |
|
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|
734 } |
|
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|
735 |
|
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changeset
|
736 stateMachine_.CheckHeadersCompatibilityWithMultipart(); |
|
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|
737 |
|
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changeset
|
738 std::string boundary, contentTypeHeader; |
|
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|
739 PrepareMultipartMainHeader(boundary, contentTypeHeader, subType, contentType); |
|
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|
740 SetContentType(contentTypeHeader); |
|
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|
741 |
|
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742 std::map<std::string, std::string> empty; |
|
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|
743 |
|
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|
744 ChunkedBuffer chunked; |
|
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745 for (size_t i = 0; i < parts.size(); i++) |
|
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|
746 { |
|
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|
747 std::string partHeader; |
|
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748 PrepareMultipartItemHeader(partHeader, sizes[i], headers[i] == NULL ? empty : *headers[i], |
|
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|
749 boundary, contentType); |
|
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|
750 |
|
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751 chunked.AddChunk(partHeader); |
|
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|
752 chunked.AddChunk(parts[i], sizes[i]); |
|
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753 chunked.AddChunk("\r\n"); |
|
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changeset
|
754 } |
|
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|
755 |
|
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changeset
|
756 chunked.AddChunk("--" + boundary + "--\r\n"); |
|
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|
757 |
|
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|
758 std::string body; |
|
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changeset
|
759 chunked.Flatten(body); |
|
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|
760 Answer(body); |
|
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changeset
|
761 } |
| 0 | 762 } |