Mercurial > hg > orthanc
annotate Core/HttpServer/HttpOutput.cpp @ 3171:81cd9a4f3018
always add HTTP header "Connection: close" if keep-alive is disabled
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Sun, 27 Jan 2019 15:59:36 +0100 |
parents | 6e8822be2f08 |
children | 6d558598d713 |
rev | line source |
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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) 2017-2019 Osimis S.A., Belgium |
0 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU General Public License as | |
9 * published by the Free Software Foundation, either version 3 of the | |
10 * License, or (at your option) any later version. | |
136 | 11 * |
12 * In addition, as a special exception, the copyright holders of this | |
13 * program give permission to link the code of its release with the | |
14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
15 * that use the same license as the "OpenSSL" library), and distribute | |
16 * the linked executables. You must obey the GNU General Public License | |
17 * in all respects for all of the code used other than "OpenSSL". If you | |
18 * modify file(s) with this exception, you may extend this exception to | |
19 * your version of the file(s), but you are not obligated to do so. If | |
20 * you do not wish to do so, delete this exception statement from your | |
21 * version. If you delete this exception statement from all source files | |
22 * in the program, then also delete it here. | |
0 | 23 * |
24 * This program is distributed in the hope that it will be useful, but | |
25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
27 * General Public License for more details. | |
28 * | |
29 * You should have received a copy of the GNU General Public License | |
30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
31 **/ | |
32 | |
33 | |
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34 #include "../PrecompiledHeaders.h" |
0 | 35 #include "HttpOutput.h" |
36 | |
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37 #include "../Logging.h" |
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38 #include "../OrthancException.h" |
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39 #include "../Toolbox.h" |
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40 #include "../Compression/GzipCompressor.h" |
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41 #include "../Compression/ZlibCompressor.h" |
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42 |
324 | 43 #include <iostream> |
0 | 44 #include <vector> |
45 #include <stdio.h> | |
46 #include <boost/lexical_cast.hpp> | |
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47 |
0 | 48 |
59 | 49 namespace Orthanc |
0 | 50 { |
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51 HttpOutput::StateMachine::StateMachine(IHttpOutputStream& stream, |
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52 bool isKeepAlive) : |
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53 stream_(stream), |
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54 state_(State_WritingHeader), |
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55 status_(HttpStatus_200_Ok), |
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56 hasContentLength_(false), |
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57 contentPosition_(0), |
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58 keepAlive_(isKeepAlive) |
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59 { |
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60 } |
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61 |
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62 HttpOutput::StateMachine::~StateMachine() |
910 | 63 { |
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64 if (state_ != State_Done) |
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65 { |
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66 //asm volatile ("int3;"); |
1200 | 67 //LOG(ERROR) << "This HTTP answer does not contain any body"; |
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68 } |
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69 |
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70 if (hasContentLength_ && contentPosition_ != contentLength_) |
910 | 71 { |
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72 LOG(ERROR) << "This HTTP answer has not sent the proper number of bytes in its body"; |
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73 } |
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74 } |
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75 |
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76 |
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77 void HttpOutput::StateMachine::SetHttpStatus(HttpStatus status) |
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78 { |
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79 if (state_ != State_WritingHeader) |
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80 { |
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81 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
910 | 82 } |
83 | |
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84 status_ = status; |
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85 } |
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86 |
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87 |
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88 void HttpOutput::StateMachine::SetContentLength(uint64_t length) |
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89 { |
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90 if (state_ != State_WritingHeader) |
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91 { |
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92 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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93 } |
910 | 94 |
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95 hasContentLength_ = true; |
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96 contentLength_ = length; |
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97 } |
910 | 98 |
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99 void HttpOutput::StateMachine::SetContentType(const char* contentType) |
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100 { |
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101 AddHeader("Content-Type", contentType); |
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102 } |
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103 |
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104 void HttpOutput::StateMachine::SetContentFilename(const char* filename) |
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105 { |
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106 // TODO Escape double quotes |
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107 AddHeader("Content-Disposition", "filename=\"" + std::string(filename) + "\""); |
910 | 108 } |
109 | |
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110 void HttpOutput::StateMachine::SetCookie(const std::string& cookie, |
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111 const std::string& value) |
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112 { |
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113 if (state_ != State_WritingHeader) |
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114 { |
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115 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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116 } |
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117 |
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118 // TODO Escape "=" characters |
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119 AddHeader("Set-Cookie", cookie + "=" + value); |
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120 } |
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121 |
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122 |
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123 void HttpOutput::StateMachine::AddHeader(const std::string& header, |
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124 const std::string& value) |
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125 { |
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126 if (state_ != State_WritingHeader) |
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127 { |
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128 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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129 } |
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130 |
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131 headers_.push_back(header + ": " + value + "\r\n"); |
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132 } |
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133 |
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134 void HttpOutput::StateMachine::ClearHeaders() |
910 | 135 { |
136 if (state_ != State_WritingHeader) | |
137 { | |
138 throw OrthancException(ErrorCode_BadSequenceOfCalls); | |
139 } | |
140 | |
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141 headers_.clear(); |
910 | 142 } |
143 | |
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144 void HttpOutput::StateMachine::SendBody(const void* buffer, size_t length) |
910 | 145 { |
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146 if (state_ == State_Done) |
910 | 147 { |
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148 if (length == 0) |
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149 { |
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150 return; |
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151 } |
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152 else |
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153 { |
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154 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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155 "Because of keep-alive connections, the entire body must " |
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156 "be sent at once or Content-Length must be given"); |
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157 } |
910 | 158 } |
159 | |
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160 if (state_ == State_WritingMultipart) |
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161 { |
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162 throw OrthancException(ErrorCode_InternalError); |
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163 } |
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164 |
910 | 165 if (state_ == State_WritingHeader) |
166 { | |
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167 // Send the HTTP header before writing the body |
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168 |
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169 stream_.OnHttpStatusReceived(status_); |
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170 |
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171 std::string s = "HTTP/1.1 " + |
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172 boost::lexical_cast<std::string>(status_) + |
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173 " " + std::string(EnumerationToString(status_)) + |
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174 "\r\n"; |
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175 |
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176 if (keepAlive_) |
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177 { |
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178 s += "Connection: keep-alive\r\n"; |
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179 } |
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180 else |
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181 { |
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182 s += "Connection: close\r\n"; |
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183 } |
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184 |
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185 for (std::list<std::string>::const_iterator |
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186 it = headers_.begin(); it != headers_.end(); ++it) |
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187 { |
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188 s += *it; |
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189 } |
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190 |
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191 if (status_ != HttpStatus_200_Ok) |
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192 { |
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193 hasContentLength_ = false; |
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194 } |
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195 |
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196 uint64_t contentLength = (hasContentLength_ ? contentLength_ : length); |
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197 s += "Content-Length: " + boost::lexical_cast<std::string>(contentLength) + "\r\n\r\n"; |
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198 |
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199 stream_.Send(true, s.c_str(), s.size()); |
910 | 200 state_ = State_WritingBody; |
201 } | |
202 | |
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203 if (hasContentLength_ && |
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204 contentPosition_ + length > contentLength_) |
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205 { |
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206 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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207 "The body size exceeds what was declared with SetContentSize()"); |
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208 } |
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209 |
910 | 210 if (length > 0) |
211 { | |
911 | 212 stream_.Send(false, buffer, length); |
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213 contentPosition_ += length; |
330 | 214 } |
215 | |
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216 if (!hasContentLength_ || |
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217 contentPosition_ == contentLength_) |
330 | 218 { |
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219 state_ = State_Done; |
330 | 220 } |
221 } | |
222 | |
207 | 223 |
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224 void HttpOutput::StateMachine::CloseBody() |
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225 { |
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226 switch (state_) |
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227 { |
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228 case State_WritingHeader: |
1522 | 229 SetContentLength(0); |
230 SendBody(NULL, 0); | |
231 break; | |
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232 |
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233 case State_WritingBody: |
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234 if (!hasContentLength_ || |
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235 contentPosition_ == contentLength_) |
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236 { |
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237 state_ = State_Done; |
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238 } |
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239 else |
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240 { |
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241 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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242 "The body size has not reached what was declared with SetContentSize()"); |
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243 } |
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244 |
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245 break; |
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246 |
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247 case State_WritingMultipart: |
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248 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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249 "Cannot invoke CloseBody() with multipart outputs"); |
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250 |
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251 case State_Done: |
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252 return; // Ignore |
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253 |
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254 default: |
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255 throw OrthancException(ErrorCode_InternalError); |
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256 } |
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257 } |
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258 |
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259 |
1517 | 260 HttpCompression HttpOutput::GetPreferredCompression(size_t bodySize) const |
261 { | |
262 #if 0 | |
263 // TODO Do not compress small files? | |
264 if (bodySize < 512) | |
265 { | |
266 return HttpCompression_None; | |
267 } | |
268 #endif | |
269 | |
270 // Prefer "gzip" over "deflate" if the choice is offered | |
271 | |
272 if (isGzipAllowed_) | |
273 { | |
274 return HttpCompression_Gzip; | |
275 } | |
276 else if (isDeflateAllowed_) | |
277 { | |
278 return HttpCompression_Deflate; | |
279 } | |
280 else | |
281 { | |
282 return HttpCompression_None; | |
283 } | |
284 } | |
285 | |
286 | |
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287 void HttpOutput::SendMethodNotAllowed(const std::string& allowed) |
0 | 288 { |
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289 stateMachine_.ClearHeaders(); |
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290 stateMachine_.SetHttpStatus(HttpStatus_405_MethodNotAllowed); |
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291 stateMachine_.AddHeader("Allow", allowed); |
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292 stateMachine_.SendBody(NULL, 0); |
0 | 293 } |
294 | |
295 | |
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296 void HttpOutput::SendStatus(HttpStatus status, |
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297 const char* message, |
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298 size_t messageSize) |
0 | 299 { |
1954 | 300 if (status == HttpStatus_301_MovedPermanently || |
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301 status == HttpStatus_401_Unauthorized || |
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302 status == HttpStatus_405_MethodNotAllowed) |
0 | 303 { |
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304 throw OrthancException(ErrorCode_ParameterOutOfRange, |
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305 "Please use the dedicated methods to this HTTP status code in HttpOutput"); |
0 | 306 } |
307 | |
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308 stateMachine_.SetHttpStatus(status); |
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309 stateMachine_.SendBody(message, messageSize); |
339 | 310 } |
311 | |
312 | |
0 | 313 void HttpOutput::Redirect(const std::string& path) |
314 { | |
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315 stateMachine_.ClearHeaders(); |
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316 stateMachine_.SetHttpStatus(HttpStatus_301_MovedPermanently); |
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317 stateMachine_.AddHeader("Location", path); |
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318 stateMachine_.SendBody(NULL, 0); |
0 | 319 } |
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320 |
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321 |
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322 void HttpOutput::SendUnauthorized(const std::string& realm) |
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323 { |
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324 stateMachine_.ClearHeaders(); |
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325 stateMachine_.SetHttpStatus(HttpStatus_401_Unauthorized); |
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326 stateMachine_.AddHeader("WWW-Authenticate", "Basic realm=\"" + realm + "\""); |
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327 stateMachine_.SendBody(NULL, 0); |
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328 } |
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329 |
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330 |
1521 | 331 void HttpOutput::Answer(const void* buffer, |
332 size_t length) | |
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333 { |
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334 if (length == 0) |
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335 { |
1521 | 336 AnswerEmpty(); |
337 return; | |
338 } | |
339 | |
340 HttpCompression compression = GetPreferredCompression(length); | |
341 | |
342 if (compression == HttpCompression_None) | |
343 { | |
344 stateMachine_.SetContentLength(length); | |
345 stateMachine_.SendBody(buffer, length); | |
346 return; | |
347 } | |
348 | |
349 std::string compressed, encoding; | |
350 | |
351 switch (compression) | |
352 { | |
353 case HttpCompression_Deflate: | |
354 { | |
355 encoding = "deflate"; | |
356 ZlibCompressor compressor; | |
357 // Do not prefix the buffer with its uncompressed size, to be compatible with "deflate" | |
358 compressor.SetPrefixWithUncompressedSize(false); | |
359 compressor.Compress(compressed, buffer, length); | |
360 break; | |
361 } | |
362 | |
363 case HttpCompression_Gzip: | |
364 { | |
365 encoding = "gzip"; | |
366 GzipCompressor compressor; | |
367 compressor.Compress(compressed, buffer, length); | |
368 break; | |
369 } | |
370 | |
371 default: | |
372 throw OrthancException(ErrorCode_InternalError); | |
373 } | |
374 | |
375 LOG(TRACE) << "Compressing a HTTP answer using " << encoding; | |
376 | |
377 // The body is empty, do not use HTTP compression | |
378 if (compressed.size() == 0) | |
379 { | |
380 AnswerEmpty(); | |
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381 } |
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382 else |
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383 { |
1521 | 384 stateMachine_.AddHeader("Content-Encoding", encoding); |
385 stateMachine_.SetContentLength(compressed.size()); | |
386 stateMachine_.SendBody(compressed.c_str(), compressed.size()); | |
387 } | |
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388 |
1521 | 389 stateMachine_.CloseBody(); |
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390 } |
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391 |
1521 | 392 |
393 void HttpOutput::Answer(const std::string& str) | |
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394 { |
1521 | 395 Answer(str.size() == 0 ? NULL : str.c_str(), str.size()); |
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396 } |
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397 |
1521 | 398 |
399 void HttpOutput::AnswerEmpty() | |
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400 { |
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401 stateMachine_.CloseBody(); |
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402 } |
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403 |
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404 |
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405 void HttpOutput::StateMachine::StartMultipart(const std::string& subType, |
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406 const std::string& contentType) |
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407 { |
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408 if (subType != "mixed" && |
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409 subType != "related") |
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410 { |
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411 throw OrthancException(ErrorCode_ParameterOutOfRange); |
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412 } |
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413 |
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414 if (state_ != State_WritingHeader) |
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415 { |
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416 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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417 } |
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418 |
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419 if (status_ != HttpStatus_200_Ok) |
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420 { |
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421 SendBody(NULL, 0); |
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422 return; |
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423 } |
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424 |
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425 stream_.OnHttpStatusReceived(status_); |
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426 |
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427 std::string header = "HTTP/1.1 200 OK\r\n"; |
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428 |
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429 if (keepAlive_) |
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430 { |
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431 #if ORTHANC_ENABLE_MONGOOSE == 1 |
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432 throw OrthancException(ErrorCode_NotImplemented, |
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433 "Multipart answers are not implemented together " |
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434 "with keep-alive connections if using Mongoose"); |
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435 #else |
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436 // Turn off Keep-Alive for multipart answers |
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437 // https://github.com/civetweb/civetweb/issues/727 |
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438 stream_.DisableKeepAlive(); |
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439 header += "Connection: close\r\n"; |
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440 #endif |
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441 } |
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442 else |
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443 { |
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444 header += "Connection: close\r\n"; |
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445 } |
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446 |
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447 // Possibly add the cookies |
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448 for (std::list<std::string>::const_iterator |
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449 it = headers_.begin(); it != headers_.end(); ++it) |
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450 { |
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451 if (!Toolbox::StartsWith(*it, "Set-Cookie: ")) |
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452 { |
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453 throw OrthancException(ErrorCode_BadSequenceOfCalls, |
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454 "The only headers that can be set in multipart answers " |
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455 "are Set-Cookie (here: " + *it + " is set)"); |
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456 } |
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457 |
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458 header += *it; |
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459 } |
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460 |
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461 /** |
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462 * Fix for issue 54 ("Decide what to do wrt. quoting of multipart |
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463 * answers"). The "type" parameter in the "Content-Type" HTTP |
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464 * header must be quoted if it contains a forward slash "/". This |
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465 * is necessary for DICOMweb compatibility with OsiriX, but breaks |
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466 * compatibility with old releases of the client in the Orthanc |
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467 * DICOMweb plugin <= 0.3 (releases >= 0.4 work fine). |
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468 * |
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469 * Full history is available at the following locations: |
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470 * - In changeset 2248:69b0f4e8a49b: |
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471 * # hg history -v -r 2248 |
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472 * - https://bitbucket.org/sjodogne/orthanc/issues/54/ |
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473 * - https://groups.google.com/d/msg/orthanc-users/65zhIM5xbKI/TU5Q1_LhAwAJ |
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474 **/ |
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Fix issue #54 (quoting multipart answers)
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475 std::string tmp; |
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Fix issue #54 (quoting multipart answers)
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476 if (contentType.find('/') == std::string::npos) |
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Fix issue #54 (quoting multipart answers)
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477 { |
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Fix issue #54 (quoting multipart answers)
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478 // No forward slash in the content type |
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Fix issue #54 (quoting multipart answers)
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479 tmp = contentType; |
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Fix issue #54 (quoting multipart answers)
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480 } |
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Fix issue #54 (quoting multipart answers)
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481 else |
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Fix issue #54 (quoting multipart answers)
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482 { |
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Fix issue #54 (quoting multipart answers)
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483 // Quote the content type because of the forward slash |
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484 tmp = "\"" + contentType + "\""; |
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Fix issue #54 (quoting multipart answers)
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485 } |
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Fix issue #54 (quoting multipart answers)
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486 |
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487 multipartBoundary_ = Toolbox::GenerateUuid(); |
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488 multipartContentType_ = contentType; |
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489 header += ("Content-Type: multipart/" + subType + "; type=" + |
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490 tmp + "; boundary=" + multipartBoundary_ + "\r\n\r\n"); |
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491 |
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492 stream_.Send(true, header.c_str(), header.size()); |
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493 state_ = State_WritingMultipart; |
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494 } |
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495 |
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496 |
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OrthancPluginSendMultipartItem2 for DICOMweb
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497 void HttpOutput::StateMachine::SendMultipartItem(const void* item, |
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498 size_t length, |
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499 const std::map<std::string, std::string>& headers) |
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500 { |
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501 if (state_ != State_WritingMultipart) |
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OrthancPluginSendMultipartItem2 for DICOMweb
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502 { |
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OrthancPluginSendMultipartItem2 for DICOMweb
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503 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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504 } |
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505 |
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506 std::string header = "--" + multipartBoundary_ + "\r\n"; |
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507 |
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OrthancPluginSendMultipartItem2 for DICOMweb
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508 bool hasContentType = false; |
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509 bool hasContentLength = false; |
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510 bool hasMimeVersion = false; |
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511 |
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OrthancPluginSendMultipartItem2 for DICOMweb
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512 for (std::map<std::string, std::string>::const_iterator |
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OrthancPluginSendMultipartItem2 for DICOMweb
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513 it = headers.begin(); it != headers.end(); ++it) |
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OrthancPluginSendMultipartItem2 for DICOMweb
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514 { |
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OrthancPluginSendMultipartItem2 for DICOMweb
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515 header += it->first + ": " + it->second + "\r\n"; |
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OrthancPluginSendMultipartItem2 for DICOMweb
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516 |
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OrthancPluginSendMultipartItem2 for DICOMweb
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517 std::string tmp; |
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OrthancPluginSendMultipartItem2 for DICOMweb
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518 Toolbox::ToLowerCase(tmp, it->first); |
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OrthancPluginSendMultipartItem2 for DICOMweb
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519 |
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OrthancPluginSendMultipartItem2 for DICOMweb
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520 if (tmp == "content-type") |
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OrthancPluginSendMultipartItem2 for DICOMweb
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521 { |
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OrthancPluginSendMultipartItem2 for DICOMweb
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522 hasContentType = true; |
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523 } |
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OrthancPluginSendMultipartItem2 for DICOMweb
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524 |
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OrthancPluginSendMultipartItem2 for DICOMweb
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525 if (tmp == "content-length") |
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OrthancPluginSendMultipartItem2 for DICOMweb
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526 { |
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OrthancPluginSendMultipartItem2 for DICOMweb
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527 hasContentLength = true; |
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OrthancPluginSendMultipartItem2 for DICOMweb
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528 } |
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OrthancPluginSendMultipartItem2 for DICOMweb
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529 |
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OrthancPluginSendMultipartItem2 for DICOMweb
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530 if (tmp == "mime-version") |
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OrthancPluginSendMultipartItem2 for DICOMweb
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531 { |
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OrthancPluginSendMultipartItem2 for DICOMweb
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532 hasMimeVersion = true; |
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OrthancPluginSendMultipartItem2 for DICOMweb
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533 } |
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OrthancPluginSendMultipartItem2 for DICOMweb
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534 } |
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OrthancPluginSendMultipartItem2 for DICOMweb
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535 |
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OrthancPluginSendMultipartItem2 for DICOMweb
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536 if (!hasContentType) |
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OrthancPluginSendMultipartItem2 for DICOMweb
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537 { |
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OrthancPluginSendMultipartItem2 for DICOMweb
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538 header += "Content-Type: " + multipartContentType_ + "\r\n"; |
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OrthancPluginSendMultipartItem2 for DICOMweb
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539 } |
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OrthancPluginSendMultipartItem2 for DICOMweb
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540 |
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OrthancPluginSendMultipartItem2 for DICOMweb
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|
541 if (!hasContentLength) |
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OrthancPluginSendMultipartItem2 for DICOMweb
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542 { |
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OrthancPluginSendMultipartItem2 for DICOMweb
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543 header += "Content-Length: " + boost::lexical_cast<std::string>(length) + "\r\n"; |
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OrthancPluginSendMultipartItem2 for DICOMweb
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544 } |
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OrthancPluginSendMultipartItem2 for DICOMweb
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545 |
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OrthancPluginSendMultipartItem2 for DICOMweb
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546 if (!hasMimeVersion) |
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OrthancPluginSendMultipartItem2 for DICOMweb
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547 { |
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OrthancPluginSendMultipartItem2 for DICOMweb
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548 header += "MIME-Version: 1.0\r\n\r\n"; |
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OrthancPluginSendMultipartItem2 for DICOMweb
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549 } |
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550 |
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551 stream_.Send(false, header.c_str(), header.size()); |
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Plugins can send answers as multipart messages
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552 |
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Plugins can send answers as multipart messages
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553 if (length > 0) |
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Plugins can send answers as multipart messages
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554 { |
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Plugins can send answers as multipart messages
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555 stream_.Send(false, item, length); |
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556 } |
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Plugins can send answers as multipart messages
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|
557 |
1882
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OrthancPluginSendMultipartItem2 for DICOMweb
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|
558 stream_.Send(false, "\r\n", 2); |
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559 } |
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Plugins can send answers as multipart messages
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|
560 |
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Plugins can send answers as multipart messages
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changeset
|
561 |
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Plugins can send answers as multipart messages
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|
562 void HttpOutput::StateMachine::CloseMultipart() |
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Plugins can send answers as multipart messages
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563 { |
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Plugins can send answers as multipart messages
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564 if (state_ != State_WritingMultipart) |
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Plugins can send answers as multipart messages
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|
565 { |
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Plugins can send answers as multipart messages
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|
566 throw OrthancException(ErrorCode_BadSequenceOfCalls); |
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Plugins can send answers as multipart messages
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|
567 } |
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Plugins can send answers as multipart messages
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|
568 |
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Plugins can send answers as multipart messages
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changeset
|
569 // The two lines below might throw an exception, if the client has |
ad94a3583b07
Plugins can send answers as multipart messages
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changeset
|
570 // closed the connection. Such an error is ignored. |
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Plugins can send answers as multipart messages
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|
571 try |
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Plugins can send answers as multipart messages
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|
572 { |
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|
573 std::string header = "--" + multipartBoundary_ + "--\r\n"; |
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Plugins can send answers as multipart messages
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|
574 stream_.Send(false, header.c_str(), header.size()); |
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Plugins can send answers as multipart messages
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diff
changeset
|
575 } |
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Plugins can send answers as multipart messages
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changeset
|
576 catch (OrthancException&) |
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Plugins can send answers as multipart messages
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|
577 { |
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Plugins can send answers as multipart messages
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changeset
|
578 } |
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Plugins can send answers as multipart messages
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diff
changeset
|
579 |
ad94a3583b07
Plugins can send answers as multipart messages
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changeset
|
580 state_ = State_Done; |
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Plugins can send answers as multipart messages
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changeset
|
581 } |
ad94a3583b07
Plugins can send answers as multipart messages
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|
582 |
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Plugins can send answers as multipart messages
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changeset
|
583 |
1519
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refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
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diff
changeset
|
584 void HttpOutput::Answer(IHttpStreamAnswer& stream) |
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refactoring: IHttpStreamAnswer
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585 { |
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586 HttpCompression compression = stream.SetupHttpCompression(isGzipAllowed_, isDeflateAllowed_); |
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587 |
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588 switch (compression) |
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589 { |
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590 case HttpCompression_None: |
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591 break; |
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592 |
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593 case HttpCompression_Gzip: |
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594 stateMachine_.AddHeader("Content-Encoding", "gzip"); |
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595 break; |
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596 |
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597 case HttpCompression_Deflate: |
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598 stateMachine_.AddHeader("Content-Encoding", "deflate"); |
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599 break; |
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600 |
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601 default: |
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602 throw OrthancException(ErrorCode_ParameterOutOfRange); |
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603 } |
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604 |
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605 stateMachine_.SetContentLength(stream.GetContentLength()); |
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606 |
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607 std::string contentType = stream.GetContentType(); |
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608 if (contentType.empty()) |
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609 { |
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610 contentType = MIME_BINARY; |
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611 } |
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612 |
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613 stateMachine_.SetContentType(contentType.c_str()); |
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614 |
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615 std::string filename; |
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616 if (stream.HasContentFilename(filename)) |
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617 { |
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618 SetContentFilename(filename.c_str()); |
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619 } |
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620 |
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621 while (stream.ReadNextChunk()) |
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622 { |
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623 stateMachine_.SendBody(stream.GetChunkContent(), |
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624 stream.GetChunkSize()); |
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625 } |
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626 |
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627 stateMachine_.CloseBody(); |
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628 } |
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629 |
0 | 630 } |