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annotate Core/HttpServer/HttpOutput.cpp @ 1561:c9e0e709485b

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fix
author jodogne
date Fri, 21 Aug 2015 12:08:43 +0200
parents c388502a066d
children 9c5d93510414
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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32
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33 #include "../PrecompiledHeaders.h"
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34 #include "HttpOutput.h"
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35
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36 #include "../Logging.h"
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37 #include "../OrthancException.h"
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38 #include "../Toolbox.h"
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39 #include "../Compression/GzipCompressor.h"
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40 #include "../Compression/ZlibCompressor.h"
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41
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42 #include <iostream>
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43 #include <vector>
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44 #include <stdio.h>
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45 #include <boost/lexical_cast.hpp>
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47
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48 namespace Orthanc
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49 {
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50 HttpOutput::StateMachine::StateMachine(IHttpOutputStream& stream,
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51 bool isKeepAlive) :
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52 stream_(stream),
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53 state_(State_WritingHeader),
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54 status_(HttpStatus_200_Ok),
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55 hasContentLength_(false),
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56 contentPosition_(0),
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57 keepAlive_(isKeepAlive)
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58 {
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59 }
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60
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61 HttpOutput::StateMachine::~StateMachine()
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62 {
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63 if (state_ != State_Done)
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64 {
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65 //asm volatile ("int3;");
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66 //LOG(ERROR) << "This HTTP answer does not contain any body";
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67 }
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69 if (hasContentLength_ && contentPosition_ != contentLength_)
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70 {
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71 LOG(ERROR) << "This HTTP answer has not sent the proper number of bytes in its body";
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72 }
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73 }
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76 void HttpOutput::StateMachine::SetHttpStatus(HttpStatus status)
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77 {
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78 if (state_ != State_WritingHeader)
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79 {
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80 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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81 }
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82
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83 status_ = status;
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84 }
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87 void HttpOutput::StateMachine::SetContentLength(uint64_t length)
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88 {
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89 if (state_ != State_WritingHeader)
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90 {
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91 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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92 }
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93
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94 hasContentLength_ = true;
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95 contentLength_ = length;
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96 }
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97
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98 void HttpOutput::StateMachine::SetContentType(const char* contentType)
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99 {
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100 AddHeader("Content-Type", contentType);
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101 }
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102
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103 void HttpOutput::StateMachine::SetContentFilename(const char* filename)
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104 {
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105 // TODO Escape double quotes
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106 AddHeader("Content-Disposition", "filename=\"" + std::string(filename) + "\"");
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107 }
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108
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109 void HttpOutput::StateMachine::SetCookie(const std::string& cookie,
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110 const std::string& value)
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111 {
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112 if (state_ != State_WritingHeader)
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113 {
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114 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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115 }
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116
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117 // TODO Escape "=" characters
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118 AddHeader("Set-Cookie", cookie + "=" + value);
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119 }
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120
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121
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122 void HttpOutput::StateMachine::AddHeader(const std::string& header,
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123 const std::string& value)
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124 {
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125 if (state_ != State_WritingHeader)
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126 {
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127 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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128 }
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129
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diff changeset
130 headers_.push_back(header + ": " + value + "\r\n");
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131 }
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132
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133 void HttpOutput::StateMachine::ClearHeaders()
910
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134 {
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diff changeset
135 if (state_ != State_WritingHeader)
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136 {
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137 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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138 }
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139
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diff changeset
140 headers_.clear();
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141 }
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142
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143 void HttpOutput::StateMachine::SendBody(const void* buffer, size_t length)
910
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144 {
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diff changeset
145 if (state_ == State_Done)
910
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146 {
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147 if (length == 0)
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148 {
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diff changeset
149 return;
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150 }
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diff changeset
151 else
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152 {
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153 LOG(ERROR) << "Because of keep-alive connections, the entire body must be sent at once or Content-Length must be given";
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154 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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155 }
910
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156 }
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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
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163 if (state_ == State_WritingHeader)
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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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diff changeset
178
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diff changeset
179 for (std::list<std::string>::const_iterator
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diff changeset
180 it = headers_.begin(); it != headers_.end(); ++it)
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diff changeset
181 {
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diff changeset
182 s += *it;
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183 }
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184
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diff changeset
185 if (status_ != HttpStatus_200_Ok)
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diff changeset
186 {
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187 hasContentLength_ = false;
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188 }
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diff changeset
189
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diff changeset
190 uint64_t contentLength = (hasContentLength_ ? contentLength_ : length);
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diff changeset
191 s += "Content-Length: " + boost::lexical_cast<std::string>(contentLength) + "\r\n\r\n";
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diff changeset
192
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diff changeset
193 stream_.Send(true, s.c_str(), s.size());
910
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194 state_ = State_WritingBody;
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195 }
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diff changeset
196
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197 if (hasContentLength_ &&
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diff changeset
198 contentPosition_ + length > contentLength_)
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diff changeset
199 {
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diff changeset
200 LOG(ERROR) << "The body size exceeds what was declared with SetContentSize()";
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201 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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diff changeset
202 }
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diff changeset
203
910
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diff changeset
204 if (length > 0)
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diff changeset
205 {
911
306afd58a0b3 fix build
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diff changeset
206 stream_.Send(false, buffer, length);
1113
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diff changeset
207 contentPosition_ += length;
330
78a8eaa5f30b cookies
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diff changeset
208 }
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diff changeset
209
1113
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diff changeset
210 if (!hasContentLength_ ||
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diff changeset
211 contentPosition_ == contentLength_)
330
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diff changeset
212 {
1113
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diff changeset
213 state_ = State_Done;
330
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diff changeset
214 }
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diff changeset
215 }
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diff changeset
216
207
7f74209ea0f8 RestApi
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parents: 155
diff changeset
217
1519
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diff changeset
218 void HttpOutput::StateMachine::CloseBody()
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diff changeset
219 {
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
220 switch (state_)
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
221 {
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
222 case State_WritingHeader:
1522
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parents: 1521
diff changeset
223 SetContentLength(0);
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diff changeset
224 SendBody(NULL, 0);
Sebastien Jodogne <s.jodogne@gmail.com>
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diff changeset
225 break;
1519
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
226
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diff changeset
227 case State_WritingBody:
8bd0d897763f refactoring: IHttpStreamAnswer
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228 if (!hasContentLength_ ||
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diff changeset
229 contentPosition_ == contentLength_)
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
230 {
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
231 state_ = State_Done;
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
232 }
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
233 else
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diff changeset
234 {
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
235 LOG(ERROR) << "The body size has not reached what was declared with SetContentSize()";
8bd0d897763f refactoring: IHttpStreamAnswer
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236 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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diff changeset
237 }
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
238
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
239 break;
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
240
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
241 case State_WritingMultipart:
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
242 LOG(ERROR) << "Cannot invoke CloseBody() with multipart outputs";
8bd0d897763f refactoring: IHttpStreamAnswer
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243 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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diff changeset
244
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diff changeset
245 case State_Done:
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246 return; // Ignore
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diff changeset
247
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
248 default:
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
249 throw OrthancException(ErrorCode_InternalError);
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diff changeset
250 }
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
251 }
8bd0d897763f refactoring: IHttpStreamAnswer
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diff changeset
252
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253
1517
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diff changeset
254 HttpCompression HttpOutput::GetPreferredCompression(size_t bodySize) const
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255 {
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diff changeset
256 #if 0
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diff changeset
257 // TODO Do not compress small files?
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diff changeset
258 if (bodySize < 512)
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diff changeset
259 {
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diff changeset
260 return HttpCompression_None;
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diff changeset
261 }
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diff changeset
262 #endif
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263
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264 // Prefer "gzip" over "deflate" if the choice is offered
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265
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266 if (isGzipAllowed_)
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267 {
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268 return HttpCompression_Gzip;
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269 }
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270 else if (isDeflateAllowed_)
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271 {
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272 return HttpCompression_Deflate;
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273 }
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parents: 1514
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274 else
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275 {
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276 return HttpCompression_None;
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277 }
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1514
diff changeset
278 }
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279
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280
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281 void HttpOutput::SendMethodNotAllowed(const std::string& allowed)
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282 {
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283 stateMachine_.ClearHeaders();
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284 stateMachine_.SetHttpStatus(HttpStatus_405_MethodNotAllowed);
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285 stateMachine_.AddHeader("Allow", allowed);
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286 stateMachine_.SendBody(NULL, 0);
0
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287 }
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288
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289
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290 void HttpOutput::SendStatus(HttpStatus status)
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291 {
473
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292 if (status == HttpStatus_200_Ok ||
908
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293 status == HttpStatus_301_MovedPermanently ||
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294 status == HttpStatus_401_Unauthorized ||
473
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295 status == HttpStatus_405_MethodNotAllowed)
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296 {
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297 LOG(ERROR) << "Please use the dedicated methods to this HTTP status code in HttpOutput";
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298 throw OrthancException(ErrorCode_ParameterOutOfRange);
0
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299 }
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parents:
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300
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301 stateMachine_.ClearHeaders();
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302 stateMachine_.SetHttpStatus(status);
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303 stateMachine_.SendBody(NULL, 0);
339
639272ef7615 answer raw buffers
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parents: 330
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304 }
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parents: 330
diff changeset
305
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parents: 330
diff changeset
306
0
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307 void HttpOutput::Redirect(const std::string& path)
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308 {
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309 stateMachine_.ClearHeaders();
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310 stateMachine_.SetHttpStatus(HttpStatus_301_MovedPermanently);
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311 stateMachine_.AddHeader("Location", path);
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312 stateMachine_.SendBody(NULL, 0);
0
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parents:
diff changeset
313 }
908
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parents: 824
diff changeset
314
e078ea944089 refactoring HttpOutput
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parents: 824
diff changeset
315
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parents: 824
diff changeset
316 void HttpOutput::SendUnauthorized(const std::string& realm)
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parents: 824
diff changeset
317 {
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diff changeset
318 stateMachine_.ClearHeaders();
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319 stateMachine_.SetHttpStatus(HttpStatus_401_Unauthorized);
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parents: 1042
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320 stateMachine_.AddHeader("WWW-Authenticate", "Basic realm=\"" + realm + "\"");
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parents: 1042
diff changeset
321 stateMachine_.SendBody(NULL, 0);
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diff changeset
322 }
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parents: 1042
diff changeset
323
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diff changeset
324 void HttpOutput::Answer(const void* buffer,
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325 size_t length)
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326 {
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327 if (length == 0)
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diff changeset
328 {
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329 AnswerEmpty();
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330 return;
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parents: 1519
diff changeset
331 }
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parents: 1519
diff changeset
332
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diff changeset
333 HttpCompression compression = GetPreferredCompression(length);
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parents: 1519
diff changeset
334
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parents: 1519
diff changeset
335 if (compression == HttpCompression_None)
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parents: 1519
diff changeset
336 {
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parents: 1519
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337 stateMachine_.SetContentLength(length);
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338 stateMachine_.SendBody(buffer, length);
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parents: 1519
diff changeset
339 return;
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parents: 1519
diff changeset
340 }
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parents: 1519
diff changeset
341
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parents: 1519
diff changeset
342 std::string compressed, encoding;
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parents: 1519
diff changeset
343
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parents: 1519
diff changeset
344 switch (compression)
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parents: 1519
diff changeset
345 {
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parents: 1519
diff changeset
346 case HttpCompression_Deflate:
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parents: 1519
diff changeset
347 {
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parents: 1519
diff changeset
348 encoding = "deflate";
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parents: 1519
diff changeset
349 ZlibCompressor compressor;
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diff changeset
350 // Do not prefix the buffer with its uncompressed size, to be compatible with "deflate"
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parents: 1519
diff changeset
351 compressor.SetPrefixWithUncompressedSize(false);
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parents: 1519
diff changeset
352 compressor.Compress(compressed, buffer, length);
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parents: 1519
diff changeset
353 break;
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parents: 1519
diff changeset
354 }
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parents: 1519
diff changeset
355
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parents: 1519
diff changeset
356 case HttpCompression_Gzip:
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parents: 1519
diff changeset
357 {
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parents: 1519
diff changeset
358 encoding = "gzip";
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parents: 1519
diff changeset
359 GzipCompressor compressor;
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parents: 1519
diff changeset
360 compressor.Compress(compressed, buffer, length);
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parents: 1519
diff changeset
361 break;
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parents: 1519
diff changeset
362 }
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parents: 1519
diff changeset
363
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parents: 1519
diff changeset
364 default:
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parents: 1519
diff changeset
365 throw OrthancException(ErrorCode_InternalError);
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parents: 1519
diff changeset
366 }
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parents: 1519
diff changeset
367
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parents: 1519
diff changeset
368 LOG(TRACE) << "Compressing a HTTP answer using " << encoding;
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parents: 1519
diff changeset
369
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parents: 1519
diff changeset
370 // The body is empty, do not use HTTP compression
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parents: 1519
diff changeset
371 if (compressed.size() == 0)
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parents: 1519
diff changeset
372 {
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parents: 1519
diff changeset
373 AnswerEmpty();
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parents: 1042
diff changeset
374 }
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parents: 1042
diff changeset
375 else
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parents: 1042
diff changeset
376 {
1521
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diff changeset
377 stateMachine_.AddHeader("Content-Encoding", encoding);
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parents: 1519
diff changeset
378 stateMachine_.SetContentLength(compressed.size());
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1519
diff changeset
379 stateMachine_.SendBody(compressed.c_str(), compressed.size());
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1519
diff changeset
380 }
1511
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parents: 1486
diff changeset
381
1521
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diff changeset
382 stateMachine_.CloseBody();
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parents: 1042
diff changeset
383 }
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parents: 1042
diff changeset
384
1521
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parents: 1519
diff changeset
385
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parents: 1519
diff changeset
386 void HttpOutput::Answer(const std::string& str)
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parents: 1486
diff changeset
387 {
1521
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parents: 1519
diff changeset
388 Answer(str.size() == 0 ? NULL : str.c_str(), str.size());
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parents: 1486
diff changeset
389 }
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parents: 1486
diff changeset
390
1521
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parents: 1519
diff changeset
391
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parents: 1519
diff changeset
392 void HttpOutput::AnswerEmpty()
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parents: 1042
diff changeset
393 {
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parents: 1517
diff changeset
394 stateMachine_.CloseBody();
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parents: 1042
diff changeset
395 }
1430
ad94a3583b07 Plugins can send answers as multipart messages
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parents: 1288
diff changeset
396
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
397
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parents: 1288
diff changeset
398 void HttpOutput::StateMachine::StartMultipart(const std::string& subType,
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diff changeset
399 const std::string& contentType)
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parents: 1288
diff changeset
400 {
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
401 if (subType != "mixed" &&
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
402 subType != "related")
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
403 {
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
404 throw OrthancException(ErrorCode_ParameterOutOfRange);
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
405 }
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
406
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
407 if (keepAlive_)
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
408 {
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
409 LOG(ERROR) << "Multipart answers are not implemented together with keep-alive connections";
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
410 throw OrthancException(ErrorCode_NotImplemented);
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
411 }
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
412
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
413 if (state_ != State_WritingHeader)
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
414 {
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
415 throw OrthancException(ErrorCode_BadSequenceOfCalls);
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
416 }
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
417
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
418 if (status_ != HttpStatus_200_Ok)
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
419 {
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
420 SendBody(NULL, 0);
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
421 return;
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
422 }
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
423
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
424 stream_.OnHttpStatusReceived(status_);
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
425
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
426 std::string header = "HTTP/1.1 200 OK\r\n";
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
427
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
428 // Possibly add the cookies
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
429 for (std::list<std::string>::const_iterator
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
430 it = headers_.begin(); it != headers_.end(); ++it)
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
431 {
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
432 if (!Toolbox::StartsWith(*it, "Set-Cookie: "))
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
433 {
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
434 LOG(ERROR) << "The only headers that can be set in multipart answers are Set-Cookie (here: " << *it << " is set)";
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
435 throw OrthancException(ErrorCode_BadSequenceOfCalls);
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
436 }
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
437
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
438 header += *it;
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
439 }
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
440
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
441 multipartBoundary_ = Toolbox::GenerateUuid();
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
442 multipartContentType_ = contentType;
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
443 header += "Content-Type: multipart/related; type=multipart/" + subType + "; boundary=" + multipartBoundary_ + "\r\n\r\n";
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
444
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
445 stream_.Send(true, header.c_str(), header.size());
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
446 state_ = State_WritingMultipart;
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
447 }
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
448
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
449
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
450 void HttpOutput::StateMachine::SendMultipartItem(const void* item, size_t length)
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
451 {
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
452 std::string header = "--" + multipartBoundary_ + "\n";
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
453 header += "Content-Type: " + multipartContentType_ + "\n";
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
454 header += "Content-Length: " + boost::lexical_cast<std::string>(length) + "\n";
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
455 header += "MIME-Version: 1.0\n\n";
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
456
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
457 stream_.Send(false, header.c_str(), header.size());
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
458
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
459 if (length > 0)
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
460 {
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
461 stream_.Send(false, item, length);
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
462 }
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
463
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
464 stream_.Send(false, "\n", 1);
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
465 }
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
466
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
467
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
468 void HttpOutput::StateMachine::CloseMultipart()
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
469 {
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
470 if (state_ != State_WritingMultipart)
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
471 {
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
472 throw OrthancException(ErrorCode_BadSequenceOfCalls);
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
473 }
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
474
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
475 // The two lines below might throw an exception, if the client has
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
476 // closed the connection. Such an error is ignored.
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
477 try
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
478 {
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
479 std::string header = "--" + multipartBoundary_ + "--\n";
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
480 stream_.Send(false, header.c_str(), header.size());
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
481 }
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
482 catch (OrthancException&)
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
483 {
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
484 }
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
485
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
486 state_ = State_Done;
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
487 }
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
488
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
489
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
490 void HttpOutput::SendMultipartItem(const std::string& item)
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
491 {
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
492 if (item.size() > 0)
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
493 {
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
494 stateMachine_.SendMultipartItem(item.c_str(), item.size());
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
495 }
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
496 else
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
497 {
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
498 stateMachine_.SendMultipartItem(NULL, 0);
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
499 }
ad94a3583b07 Plugins can send answers as multipart messages
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1288
diff changeset
500 }
1519
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
501
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
502
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
503 void HttpOutput::Answer(IHttpStreamAnswer& stream)
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
504 {
1523
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
505 HttpCompression compression = stream.SetupHttpCompression(isGzipAllowed_, isDeflateAllowed_);
1519
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
506
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
507 switch (compression)
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
508 {
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
509 case HttpCompression_None:
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
510 break;
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
511
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
512 case HttpCompression_Gzip:
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
513 stateMachine_.AddHeader("Content-Encoding", "gzip");
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
514 break;
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
515
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
516 case HttpCompression_Deflate:
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
517 stateMachine_.AddHeader("Content-Encoding", "deflate");
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
518 break;
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
519
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
520 default:
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
521 throw OrthancException(ErrorCode_ParameterOutOfRange);
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
522 }
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
523
1523
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
524 stateMachine_.SetContentLength(stream.GetContentLength());
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
525
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
526 std::string contentType = stream.GetContentType();
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
527 if (contentType.empty())
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
528 {
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
529 contentType = "application/octet-stream";
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
530 }
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
531
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
532 stateMachine_.SetContentType(contentType.c_str());
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
533
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
534 std::string filename;
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
535 if (stream.HasContentFilename(filename))
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
536 {
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
537 SetContentFilename(filename.c_str());
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
538 }
c388502a066d testing FilesystemHttpSender
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1522
diff changeset
539
1519
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
540 while (stream.ReadNextChunk())
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
541 {
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
542 stateMachine_.SendBody(stream.GetChunkContent(),
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
543 stream.GetChunkSize());
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
544 }
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
545
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
546 stateMachine_.CloseBody();
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
547 }
8bd0d897763f refactoring: IHttpStreamAnswer
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 1517
diff changeset
548
0
3959d33612cc initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
549 }