Mercurial > hg > orthanc
annotate OrthancFramework/Sources/HttpServer/HttpOutput.cpp @ 4333:a85e74235a78
fix parsing of multipart boundaries, to resolve issue #190 in STOW-RS of DICOMweb plugin
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 27 Nov 2020 06:57:23 +0100 |
| parents | 6919242d2265 |
| children | d9473bd5ed43 |
| 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 /** |
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179 * [LIFY-2311] The "Keep-Alive" HTTP header was missing in |
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180 * Orthanc <= 1.8.0, which notably caused failures if |
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181 * uploading DICOM instances by applying Java's |
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182 * "org.apache.http.client.methods.HttpPost()" on "/instances" |
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183 * URI, if "PoolingHttpClientConnectionManager" was in used. A |
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184 * workaround was to manually set a timeout for the keep-alive |
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185 * client to, say, 200 milliseconds, by using |
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186 * "HttpClients.custom().setKeepAliveStrategy((httpResponse,httpContext)->200)". |
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187 * Note that the "timeout" value can only be integer in the |
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188 * HTTP header, so we can't use the milliseconds granularity. |
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189 **/ |
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190 s += ("Keep-Alive: timeout=" + |
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191 boost::lexical_cast<std::string>(CIVETWEB_KEEP_ALIVE_TIMEOUT_SECONDS) + "\r\n"); |
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192 } |
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193 else |
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194 { |
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195 s += "Connection: close\r\n"; |
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196 } |
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197 |
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198 for (std::list<std::string>::const_iterator |
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199 it = headers_.begin(); it != headers_.end(); ++it) |
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200 { |
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201 s += *it; |
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202 } |
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203 |
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204 if (status_ != HttpStatus_200_Ok) |
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205 { |
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206 hasContentLength_ = false; |
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207 } |
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208 |
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209 uint64_t contentLength = (hasContentLength_ ? contentLength_ : length); |
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210 s += "Content-Length: " + boost::lexical_cast<std::string>(contentLength) + "\r\n\r\n"; |
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211 |
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212 stream_.Send(true, s.c_str(), s.size()); |
| 910 | 213 state_ = State_WritingBody; |
| 214 } | |
| 215 | |
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216 if (hasContentLength_ && |
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217 contentPosition_ + length > contentLength_) |
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218 { |
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219 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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220 "The body size exceeds what was declared with SetContentSize()"); |
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221 } |
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222 |
| 910 | 223 if (length > 0) |
| 224 { | |
| 911 | 225 stream_.Send(false, buffer, length); |
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226 contentPosition_ += length; |
| 330 | 227 } |
| 228 | |
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229 if (!hasContentLength_ || |
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230 contentPosition_ == contentLength_) |
| 330 | 231 { |
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232 state_ = State_Done; |
| 330 | 233 } |
| 234 } | |
| 235 | |
| 207 | 236 |
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237 void HttpOutput::StateMachine::CloseBody() |
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238 { |
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239 switch (state_) |
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240 { |
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241 case State_WritingHeader: |
| 1522 | 242 SetContentLength(0); |
| 243 SendBody(NULL, 0); | |
| 244 break; | |
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245 |
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246 case State_WritingBody: |
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247 if (!hasContentLength_ || |
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248 contentPosition_ == contentLength_) |
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249 { |
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250 state_ = State_Done; |
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251 } |
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252 else |
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253 { |
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254 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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255 "The body size has not reached what was declared with SetContentSize()"); |
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256 } |
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257 |
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258 break; |
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259 |
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260 case State_WritingMultipart: |
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261 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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262 "Cannot invoke CloseBody() with multipart outputs"); |
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263 |
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264 case State_Done: |
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265 return; // Ignore |
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266 |
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267 default: |
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268 throw OrthancException(ErrorCode_InternalError); |
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269 } |
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270 } |
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271 |
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272 |
| 1517 | 273 HttpCompression HttpOutput::GetPreferredCompression(size_t bodySize) const |
| 274 { | |
| 275 #if 0 | |
| 276 // TODO Do not compress small files? | |
| 277 if (bodySize < 512) | |
| 278 { | |
| 279 return HttpCompression_None; | |
| 280 } | |
| 281 #endif | |
| 282 | |
| 283 // Prefer "gzip" over "deflate" if the choice is offered | |
| 284 | |
| 285 if (isGzipAllowed_) | |
| 286 { | |
| 287 return HttpCompression_Gzip; | |
| 288 } | |
| 289 else if (isDeflateAllowed_) | |
| 290 { | |
| 291 return HttpCompression_Deflate; | |
| 292 } | |
| 293 else | |
| 294 { | |
| 295 return HttpCompression_None; | |
| 296 } | |
| 297 } | |
| 298 | |
| 299 | |
| 4298 | 300 HttpOutput::HttpOutput(IHttpOutputStream &stream, |
| 301 bool isKeepAlive) : | |
| 302 stateMachine_(stream, isKeepAlive), | |
| 303 isDeflateAllowed_(false), | |
| 304 isGzipAllowed_(false) | |
| 305 { | |
| 306 } | |
| 307 | |
| 308 void HttpOutput::SetDeflateAllowed(bool allowed) | |
| 309 { | |
| 310 isDeflateAllowed_ = allowed; | |
| 311 } | |
| 312 | |
| 313 bool HttpOutput::IsDeflateAllowed() const | |
| 314 { | |
| 315 return isDeflateAllowed_; | |
| 316 } | |
| 317 | |
| 318 void HttpOutput::SetGzipAllowed(bool allowed) | |
| 319 { | |
| 320 isGzipAllowed_ = allowed; | |
| 321 } | |
| 322 | |
| 323 bool HttpOutput::IsGzipAllowed() const | |
| 324 { | |
| 325 return isGzipAllowed_; | |
| 326 } | |
| 327 | |
| 328 | |
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329 void HttpOutput::SendMethodNotAllowed(const std::string& allowed) |
| 0 | 330 { |
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331 stateMachine_.ClearHeaders(); |
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332 stateMachine_.SetHttpStatus(HttpStatus_405_MethodNotAllowed); |
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333 stateMachine_.AddHeader("Allow", allowed); |
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334 stateMachine_.SendBody(NULL, 0); |
| 0 | 335 } |
| 336 | |
| 337 | |
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338 void HttpOutput::SendStatus(HttpStatus status, |
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339 const char* message, |
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340 size_t messageSize) |
| 0 | 341 { |
| 1954 | 342 if (status == HttpStatus_301_MovedPermanently || |
| 3425 | 343 //status == HttpStatus_401_Unauthorized || |
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344 status == HttpStatus_405_MethodNotAllowed) |
| 0 | 345 { |
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346 throw OrthancException(ErrorCode_ParameterOutOfRange, |
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347 "Please use the dedicated methods to this HTTP status code in HttpOutput"); |
| 0 | 348 } |
| 349 | |
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350 stateMachine_.SetHttpStatus(status); |
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351 stateMachine_.SendBody(message, messageSize); |
| 339 | 352 } |
| 353 | |
| 4298 | 354 void HttpOutput::SendStatus(HttpStatus status) |
| 355 { | |
| 356 SendStatus(status, NULL, 0); | |
| 357 } | |
| 358 | |
| 359 void HttpOutput::SendStatus(HttpStatus status, const std::string &message) | |
| 360 { | |
| 361 SendStatus(status, message.c_str(), message.size()); | |
| 362 } | |
| 363 | |
| 364 void HttpOutput::SetContentType(MimeType contentType) | |
| 365 { | |
| 366 stateMachine_.SetContentType(EnumerationToString(contentType)); | |
| 367 } | |
| 368 | |
| 369 void HttpOutput::SetContentType(const std::string &contentType) | |
| 370 { | |
| 371 stateMachine_.SetContentType(contentType.c_str()); | |
| 372 } | |
| 373 | |
| 374 void HttpOutput::SetContentFilename(const char *filename) | |
| 375 { | |
| 376 stateMachine_.SetContentFilename(filename); | |
| 377 } | |
| 378 | |
| 379 void HttpOutput::SetCookie(const std::string &cookie, const std::string &value) | |
| 380 { | |
| 381 stateMachine_.SetCookie(cookie, value); | |
| 382 } | |
| 383 | |
| 384 void HttpOutput::AddHeader(const std::string &key, const std::string &value) | |
| 385 { | |
| 386 stateMachine_.AddHeader(key, value); | |
| 387 } | |
| 388 | |
| 339 | 389 |
| 0 | 390 void HttpOutput::Redirect(const std::string& path) |
| 391 { | |
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392 stateMachine_.ClearHeaders(); |
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393 stateMachine_.SetHttpStatus(HttpStatus_301_MovedPermanently); |
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394 stateMachine_.AddHeader("Location", path); |
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395 stateMachine_.SendBody(NULL, 0); |
| 0 | 396 } |
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397 |
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398 |
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399 void HttpOutput::SendUnauthorized(const std::string& realm) |
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400 { |
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401 stateMachine_.ClearHeaders(); |
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402 stateMachine_.SetHttpStatus(HttpStatus_401_Unauthorized); |
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403 stateMachine_.AddHeader("WWW-Authenticate", "Basic realm=\"" + realm + "\""); |
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404 stateMachine_.SendBody(NULL, 0); |
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405 } |
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406 |
| 4298 | 407 void HttpOutput::StartMultipart(const std::string &subType, const std::string &contentType) |
| 408 { | |
| 409 stateMachine_.StartMultipart(subType, contentType); | |
| 410 } | |
| 411 | |
| 412 void HttpOutput::SendMultipartItem(const void *item, | |
| 413 size_t size, | |
| 414 const std::map<std::string, std::string> &headers) | |
| 415 { | |
| 416 stateMachine_.SendMultipartItem(item, size, headers); | |
| 417 } | |
| 418 | |
| 419 void HttpOutput::CloseMultipart() | |
| 420 { | |
| 421 stateMachine_.CloseMultipart(); | |
| 422 } | |
| 423 | |
| 424 bool HttpOutput::IsWritingMultipart() const | |
| 425 { | |
| 426 return stateMachine_.GetState() == StateMachine::State_WritingMultipart; | |
| 427 } | |
| 428 | |
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429 |
| 4298 | 430 void HttpOutput::Answer(const void* buffer, |
| 1521 | 431 size_t length) |
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432 { |
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433 if (length == 0) |
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434 { |
| 1521 | 435 AnswerEmpty(); |
| 436 return; | |
| 437 } | |
| 438 | |
| 439 HttpCompression compression = GetPreferredCompression(length); | |
| 440 | |
| 441 if (compression == HttpCompression_None) | |
| 442 { | |
| 443 stateMachine_.SetContentLength(length); | |
| 444 stateMachine_.SendBody(buffer, length); | |
| 445 return; | |
| 446 } | |
| 447 | |
| 448 std::string compressed, encoding; | |
| 449 | |
| 450 switch (compression) | |
| 451 { | |
| 452 case HttpCompression_Deflate: | |
| 453 { | |
| 454 encoding = "deflate"; | |
| 455 ZlibCompressor compressor; | |
| 456 // Do not prefix the buffer with its uncompressed size, to be compatible with "deflate" | |
| 457 compressor.SetPrefixWithUncompressedSize(false); | |
| 458 compressor.Compress(compressed, buffer, length); | |
| 459 break; | |
| 460 } | |
| 461 | |
| 462 case HttpCompression_Gzip: | |
| 463 { | |
| 464 encoding = "gzip"; | |
| 465 GzipCompressor compressor; | |
| 466 compressor.Compress(compressed, buffer, length); | |
| 467 break; | |
| 468 } | |
| 469 | |
| 470 default: | |
| 471 throw OrthancException(ErrorCode_InternalError); | |
| 472 } | |
| 473 | |
| 474 LOG(TRACE) << "Compressing a HTTP answer using " << encoding; | |
| 475 | |
| 476 // The body is empty, do not use HTTP compression | |
| 477 if (compressed.size() == 0) | |
| 478 { | |
| 479 AnswerEmpty(); | |
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480 } |
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481 else |
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482 { |
| 1521 | 483 stateMachine_.AddHeader("Content-Encoding", encoding); |
| 484 stateMachine_.SetContentLength(compressed.size()); | |
| 485 stateMachine_.SendBody(compressed.c_str(), compressed.size()); | |
| 486 } | |
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487 |
| 1521 | 488 stateMachine_.CloseBody(); |
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489 } |
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490 |
| 1521 | 491 |
| 492 void HttpOutput::Answer(const std::string& str) | |
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493 { |
| 1521 | 494 Answer(str.size() == 0 ? NULL : str.c_str(), str.size()); |
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495 } |
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496 |
| 1521 | 497 |
| 498 void HttpOutput::AnswerEmpty() | |
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499 { |
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500 stateMachine_.CloseBody(); |
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501 } |
|
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502 |
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503 |
|
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504 void HttpOutput::StateMachine::CheckHeadersCompatibilityWithMultipart() const |
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505 { |
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506 for (std::list<std::string>::const_iterator |
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507 it = headers_.begin(); it != headers_.end(); ++it) |
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508 { |
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509 if (!Toolbox::StartsWith(*it, "Set-Cookie: ")) |
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510 { |
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511 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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512 "The only headers that can be set in multipart answers " |
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513 "are Set-Cookie (here: " + *it + " is set)"); |
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514 } |
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515 } |
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516 } |
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517 |
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518 |
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519 static void PrepareMultipartMainHeader(std::string& boundary, |
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520 std::string& contentTypeHeader, |
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521 const std::string& subType, |
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522 const std::string& contentType) |
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523 { |
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524 if (subType != "mixed" && |
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525 subType != "related") |
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526 { |
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527 throw OrthancException(ErrorCode_ParameterOutOfRange); |
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528 } |
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529 |
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530 /** |
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531 * Fix for issue 54 ("Decide what to do wrt. quoting of multipart |
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532 * answers"). The "type" parameter in the "Content-Type" HTTP |
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533 * header must be quoted if it contains a forward slash "/". This |
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534 * is necessary for DICOMweb compatibility with OsiriX, but breaks |
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535 * compatibility with old releases of the client in the Orthanc |
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536 * DICOMweb plugin <= 0.3 (releases >= 0.4 work fine). |
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537 * |
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538 * Full history is available at the following locations: |
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539 * - In changeset 2248:69b0f4e8a49b: |
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540 * # hg history -v -r 2248 |
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541 * - https://bitbucket.org/sjodogne/orthanc/issues/54/ |
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542 * - https://groups.google.com/d/msg/orthanc-users/65zhIM5xbKI/TU5Q1_LhAwAJ |
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543 **/ |
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544 std::string tmp; |
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545 if (contentType.find('/') == std::string::npos) |
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546 { |
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547 // No forward slash in the content type |
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548 tmp = contentType; |
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549 } |
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550 else |
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551 { |
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552 // Quote the content type because of the forward slash |
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553 tmp = "\"" + contentType + "\""; |
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554 } |
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555 |
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556 boundary = Toolbox::GenerateUuid() + "-" + Toolbox::GenerateUuid(); |
| 3616 | 557 |
| 558 /** | |
| 559 * Fix for issue #165: "Encapsulation boundaries must not appear | |
| 560 * within the encapsulations, and must be no longer than 70 | |
| 561 * characters, not counting the two leading hyphens." | |
| 562 * https://tools.ietf.org/html/rfc1521 | |
| 563 * https://bitbucket.org/sjodogne/orthanc/issues/165/ | |
| 564 **/ | |
| 565 if (boundary.size() != 36 + 1 + 36) // one UUID contains 36 characters | |
| 566 { | |
| 567 throw OrthancException(ErrorCode_InternalError); | |
| 568 } | |
| 569 | |
| 570 boundary = boundary.substr(0, 70); | |
| 571 | |
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572 contentTypeHeader = ("multipart/" + subType + "; type=" + tmp + "; boundary=" + boundary); |
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573 } |
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574 |
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575 |
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576 void HttpOutput::StateMachine::StartMultipart(const std::string& subType, |
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577 const std::string& contentType) |
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578 { |
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579 if (state_ != State_WritingHeader) |
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580 { |
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581 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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582 } |
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583 |
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584 if (status_ != HttpStatus_200_Ok) |
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585 { |
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586 SendBody(NULL, 0); |
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587 return; |
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588 } |
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589 |
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590 stream_.OnHttpStatusReceived(status_); |
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591 |
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592 std::string header = "HTTP/1.1 200 OK\r\n"; |
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593 |
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594 if (keepAlive_) |
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595 { |
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596 #if ORTHANC_ENABLE_MONGOOSE == 1 |
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597 throw OrthancException(ErrorCode_NotImplemented, |
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598 "Multipart answers are not implemented together " |
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599 "with keep-alive connections if using Mongoose"); |
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600 |
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601 #elif ORTHANC_ENABLE_CIVETWEB == 1 |
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602 # if CIVETWEB_HAS_DISABLE_KEEP_ALIVE == 1 |
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603 // Turn off Keep-Alive for multipart answers |
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604 // https://github.com/civetweb/civetweb/issues/727 |
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605 stream_.DisableKeepAlive(); |
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606 header += "Connection: close\r\n"; |
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607 # else |
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608 // The function "mg_disable_keep_alive()" is not available, |
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609 // let's continue with Keep-Alive. Performance of WADO-RS will |
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610 // decrease. |
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611 header += "Connection: keep-alive\r\n"; |
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612 # endif |
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613 |
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614 #else |
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615 # error Please support your embedded Web server here |
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616 #endif |
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617 } |
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618 else |
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619 { |
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620 header += "Connection: close\r\n"; |
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621 } |
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622 |
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623 // Possibly add the cookies |
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624 CheckHeadersCompatibilityWithMultipart(); |
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625 |
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626 for (std::list<std::string>::const_iterator |
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627 it = headers_.begin(); it != headers_.end(); ++it) |
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628 { |
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629 header += *it; |
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630 } |
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631 |
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632 std::string contentTypeHeader; |
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633 PrepareMultipartMainHeader(multipartBoundary_, contentTypeHeader, subType, contentType); |
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634 multipartContentType_ = contentType; |
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635 header += ("Content-Type: " + contentTypeHeader + "\r\n\r\n"); |
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636 |
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637 stream_.Send(true, header.c_str(), header.size()); |
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638 state_ = State_WritingMultipart; |
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639 } |
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Plugins can send answers as multipart messages
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640 |
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Plugins can send answers as multipart messages
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|
641 |
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642 static void PrepareMultipartItemHeader(std::string& target, |
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643 size_t length, |
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644 const std::map<std::string, std::string>& headers, |
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645 const std::string& boundary, |
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646 const std::string& contentType) |
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647 { |
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648 target = "--" + boundary + "\r\n"; |
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649 |
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OrthancPluginSendMultipartItem2 for DICOMweb
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650 bool hasContentType = false; |
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651 bool hasContentLength = false; |
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652 bool hasMimeVersion = false; |
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653 |
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OrthancPluginSendMultipartItem2 for DICOMweb
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654 for (std::map<std::string, std::string>::const_iterator |
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655 it = headers.begin(); it != headers.end(); ++it) |
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OrthancPluginSendMultipartItem2 for DICOMweb
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656 { |
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657 target += it->first + ": " + it->second + "\r\n"; |
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changeset
|
658 |
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OrthancPluginSendMultipartItem2 for DICOMweb
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659 std::string tmp; |
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660 Toolbox::ToLowerCase(tmp, it->first); |
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
661 |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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662 if (tmp == "content-type") |
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OrthancPluginSendMultipartItem2 for DICOMweb
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663 { |
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OrthancPluginSendMultipartItem2 for DICOMweb
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664 hasContentType = true; |
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OrthancPluginSendMultipartItem2 for DICOMweb
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665 } |
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
666 |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
667 if (tmp == "content-length") |
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
668 { |
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
669 hasContentLength = true; |
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OrthancPluginSendMultipartItem2 for DICOMweb
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670 } |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
671 |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
672 if (tmp == "mime-version") |
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
673 { |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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674 hasMimeVersion = true; |
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
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675 } |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
676 } |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
677 |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
678 if (!hasContentType) |
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
679 { |
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680 target += "Content-Type: " + contentType + "\r\n"; |
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681 } |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
682 |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
683 if (!hasContentLength) |
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
684 { |
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685 target += "Content-Length: " + boost::lexical_cast<std::string>(length) + "\r\n"; |
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686 } |
|
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
687 |
|
5cf2bd0abfa2
OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
688 if (!hasMimeVersion) |
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OrthancPluginSendMultipartItem2 for DICOMweb
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changeset
|
689 { |
|
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690 target += "MIME-Version: 1.0\r\n\r\n"; |
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691 } |
|
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changeset
|
692 } |
|
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changeset
|
693 |
|
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changeset
|
694 |
|
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|
695 void HttpOutput::StateMachine::SendMultipartItem(const void* item, |
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696 size_t length, |
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697 const std::map<std::string, std::string>& headers) |
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|
698 { |
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|
699 if (state_ != State_WritingMultipart) |
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changeset
|
700 { |
|
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|
701 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
|
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changeset
|
702 } |
|
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Plugins can send answers as multipart messages
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changeset
|
703 |
|
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|
704 std::string header; |
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705 PrepareMultipartItemHeader(header, length, headers, multipartBoundary_, multipartContentType_); |
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706 stream_.Send(false, header.c_str(), header.size()); |
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Plugins can send answers as multipart messages
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changeset
|
707 |
|
ad94a3583b07
Plugins can send answers as multipart messages
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changeset
|
708 if (length > 0) |
|
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Plugins can send answers as multipart messages
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changeset
|
709 { |
|
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Plugins can send answers as multipart messages
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changeset
|
710 stream_.Send(false, item, length); |
|
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Plugins can send answers as multipart messages
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changeset
|
711 } |
|
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Plugins can send answers as multipart messages
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changeset
|
712 |
|
1882
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OrthancPluginSendMultipartItem2 for DICOMweb
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|
713 stream_.Send(false, "\r\n", 2); |
|
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changeset
|
714 } |
|
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Plugins can send answers as multipart messages
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changeset
|
715 |
|
ad94a3583b07
Plugins can send answers as multipart messages
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diff
changeset
|
716 |
|
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Plugins can send answers as multipart messages
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changeset
|
717 void HttpOutput::StateMachine::CloseMultipart() |
|
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changeset
|
718 { |
|
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Plugins can send answers as multipart messages
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changeset
|
719 if (state_ != State_WritingMultipart) |
|
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Plugins can send answers as multipart messages
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changeset
|
720 { |
|
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Plugins can send answers as multipart messages
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changeset
|
721 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
|
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changeset
|
722 } |
|
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Plugins can send answers as multipart messages
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changeset
|
723 |
|
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Plugins can send answers as multipart messages
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|
724 // The two lines below might throw an exception, if the client has |
|
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Plugins can send answers as multipart messages
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|
725 // closed the connection. Such an error is ignored. |
|
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Plugins can send answers as multipart messages
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changeset
|
726 try |
|
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Plugins can send answers as multipart messages
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changeset
|
727 { |
|
1832
b7da58699f92
Fix formatting of multipart HTTP answers
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diff
changeset
|
728 std::string header = "--" + multipartBoundary_ + "--\r\n"; |
|
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|
729 stream_.Send(false, header.c_str(), header.size()); |
|
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changeset
|
730 } |
|
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Plugins can send answers as multipart messages
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changeset
|
731 catch (OrthancException&) |
|
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Plugins can send answers as multipart messages
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changeset
|
732 { |
|
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Plugins can send answers as multipart messages
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changeset
|
733 } |
|
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Plugins can send answers as multipart messages
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changeset
|
734 |
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|
735 state_ = State_Done; |
|
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|
736 } |
|
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|
737 |
|
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Plugins can send answers as multipart messages
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|
738 |
|
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|
739 static void AnswerStreamAsBuffer(HttpOutput& output, |
|
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|
740 IHttpStreamAnswer& stream) |
|
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741 { |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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|
742 ChunkedBuffer buffer; |
|
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743 |
|
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|
744 while (stream.ReadNextChunk()) |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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|
745 { |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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|
746 if (stream.GetChunkSize() > 0) |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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747 { |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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|
748 buffer.AddChunk(stream.GetChunkContent(), stream.GetChunkSize()); |
|
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749 } |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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|
750 } |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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|
751 |
|
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|
752 std::string s; |
|
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|
753 buffer.Flatten(s); |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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|
754 |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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|
755 output.SetContentType(stream.GetContentType()); |
|
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changeset
|
756 |
|
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|
757 std::string filename; |
|
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|
758 if (stream.HasContentFilename(filename)) |
|
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changeset
|
759 { |
|
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|
760 output.SetContentFilename(filename.c_str()); |
|
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|
761 } |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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changeset
|
762 |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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|
763 output.Answer(s); |
|
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|
764 } |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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|
765 |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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|
766 |
|
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|
767 void HttpOutput::Answer(IHttpStreamAnswer& stream) |
|
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768 { |
|
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|
769 HttpCompression compression = stream.SetupHttpCompression(isGzipAllowed_, isDeflateAllowed_); |
|
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|
770 |
|
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|
771 switch (compression) |
|
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|
772 { |
|
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|
773 case HttpCompression_None: |
|
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|
774 { |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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|
775 if (isGzipAllowed_ || isDeflateAllowed_) |
|
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|
776 { |
|
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|
777 // New in Orthanc 1.5.7: Compress streams without built-in |
|
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778 // compression, if requested by the "Accept-Encoding" HTTP |
|
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HTTP header "Accept-Encoding" is honored for streams without built-in support for compression
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|
779 // header |
|
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|
780 AnswerStreamAsBuffer(*this, stream); |
|
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|
781 return; |
|
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changeset
|
782 } |
|
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diff
changeset
|
783 |
|
1519
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changeset
|
784 break; |
|
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diff
changeset
|
785 } |
|
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diff
changeset
|
786 |
|
8bd0d897763f
refactoring: IHttpStreamAnswer
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diff
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|
787 case HttpCompression_Gzip: |
|
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refactoring: IHttpStreamAnswer
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|
788 stateMachine_.AddHeader("Content-Encoding", "gzip"); |
|
8bd0d897763f
refactoring: IHttpStreamAnswer
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changeset
|
789 break; |
|
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refactoring: IHttpStreamAnswer
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changeset
|
790 |
|
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|
791 case HttpCompression_Deflate: |
|
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|
792 stateMachine_.AddHeader("Content-Encoding", "deflate"); |
|
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changeset
|
793 break; |
|
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refactoring: IHttpStreamAnswer
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changeset
|
794 |
|
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refactoring: IHttpStreamAnswer
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changeset
|
795 default: |
|
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changeset
|
796 throw OrthancException(ErrorCode_ParameterOutOfRange); |
|
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|
797 } |
|
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changeset
|
798 |
|
1523
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diff
changeset
|
799 stateMachine_.SetContentLength(stream.GetContentLength()); |
|
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|
800 |
|
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changeset
|
801 std::string contentType = stream.GetContentType(); |
|
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changeset
|
802 if (contentType.empty()) |
|
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changeset
|
803 { |
|
2905
ae20fccdd867
refactoring mime types
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diff
changeset
|
804 contentType = MIME_BINARY; |
|
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|
805 } |
|
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changeset
|
806 |
|
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changeset
|
807 stateMachine_.SetContentType(contentType.c_str()); |
|
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changeset
|
808 |
|
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changeset
|
809 std::string filename; |
|
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|
810 if (stream.HasContentFilename(filename)) |
|
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|
811 { |
|
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changeset
|
812 SetContentFilename(filename.c_str()); |
|
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changeset
|
813 } |
|
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changeset
|
814 |
|
1519
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changeset
|
815 while (stream.ReadNextChunk()) |
|
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refactoring: IHttpStreamAnswer
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changeset
|
816 { |
|
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changeset
|
817 stateMachine_.SendBody(stream.GetChunkContent(), |
|
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changeset
|
818 stream.GetChunkSize()); |
|
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changeset
|
819 } |
|
8bd0d897763f
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changeset
|
820 |
|
8bd0d897763f
refactoring: IHttpStreamAnswer
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changeset
|
821 stateMachine_.CloseBody(); |
|
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changeset
|
822 } |
|
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changeset
|
823 |
|
3528
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changeset
|
824 |
|
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|
825 void HttpOutput::AnswerMultipartWithoutChunkedTransfer( |
|
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|
826 const std::string& subType, |
|
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|
827 const std::string& contentType, |
|
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|
828 const std::vector<const void*>& parts, |
|
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|
829 const std::vector<size_t>& sizes, |
|
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changeset
|
830 const std::vector<const std::map<std::string, std::string>*>& headers) |
|
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|
831 { |
|
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changeset
|
832 if (parts.size() != sizes.size()) |
|
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changeset
|
833 { |
|
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changeset
|
834 throw OrthancException(ErrorCode_ParameterOutOfRange); |
|
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changeset
|
835 } |
|
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changeset
|
836 |
|
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changeset
|
837 stateMachine_.CheckHeadersCompatibilityWithMultipart(); |
|
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changeset
|
838 |
|
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changeset
|
839 std::string boundary, contentTypeHeader; |
|
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changeset
|
840 PrepareMultipartMainHeader(boundary, contentTypeHeader, subType, contentType); |
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841 SetContentType(contentTypeHeader); |
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parents:
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842 |
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parents:
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843 std::map<std::string, std::string> empty; |
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parents:
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844 |
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parents:
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845 ChunkedBuffer chunked; |
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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846 for (size_t i = 0; i < parts.size(); i++) |
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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847 { |
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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848 std::string partHeader; |
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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849 PrepareMultipartItemHeader(partHeader, sizes[i], headers[i] == NULL ? empty : *headers[i], |
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parents:
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850 boundary, contentType); |
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parents:
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851 |
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parents:
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852 chunked.AddChunk(partHeader); |
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853 chunked.AddChunk(parts[i], sizes[i]); |
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parents:
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854 chunked.AddChunk("\r\n"); |
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parents:
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855 } |
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parents:
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856 |
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parents:
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857 chunked.AddChunk("--" + boundary + "--\r\n"); |
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parents:
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858 |
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859 std::string body; |
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860 chunked.Flatten(body); |
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861 Answer(body); |
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862 } |
| 0 | 863 } |