annotate OrthancFramework/Sources/RestApi/RestApiOutput.cpp @ 5081:c673997507ea attach-custom-data

advanced storage cont
author Alain Mazy <am@osimis.io>
date Tue, 13 Sep 2022 11:02:43 +0200
parents 43e613a7756b
children 0ea402b4d901
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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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) 2017-2022 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with this program. If not, see
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20 * <http://www.gnu.org/licenses/>.
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21 **/
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22
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23
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24 #include "../PrecompiledHeaders.h"
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25 #include "RestApiOutput.h"
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26
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27 #include "../Logging.h"
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28 #include "../OrthancException.h"
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29 #include "../Toolbox.h"
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30
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31 #include <boost/lexical_cast.hpp>
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32
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33
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34 namespace Orthanc
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35 {
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36 RestApiOutput::RestApiOutput(HttpOutput& output,
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37 HttpMethod method) :
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38 output_(output),
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39 method_(method),
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40 convertJsonToXml_(false)
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41 {
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42 alreadySent_ = false;
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43 }
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45 RestApiOutput::~RestApiOutput()
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46 {
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47 }
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49 void RestApiOutput::Finalize()
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50 {
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51 if (!alreadySent_)
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52 {
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53 if (method_ == HttpMethod_Post)
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54 {
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55 output_.SendStatus(HttpStatus_400_BadRequest);
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56 }
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57 else
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58 {
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59 output_.SendStatus(HttpStatus_404_NotFound);
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60 }
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61 }
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62 }
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64 void RestApiOutput::CheckStatus()
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65 {
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66 if (alreadySent_)
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67 {
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68 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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69 }
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70 }
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71
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72
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73 void RestApiOutput::AnswerStream(IHttpStreamAnswer& stream)
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74 {
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75 CheckStatus();
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76 output_.Answer(stream);
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77 alreadySent_ = true;
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78 }
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79
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81 void RestApiOutput::AnswerWithoutBuffering(IHttpStreamAnswer& stream)
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82 {
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83 CheckStatus();
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84 output_.AnswerWithoutBuffering(stream);
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85 alreadySent_ = true;
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86 }
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88
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89 void RestApiOutput::AnswerJson(const Json::Value& value)
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90 {
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91 CheckStatus();
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92
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93 if (convertJsonToXml_)
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94 {
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95 #if ORTHANC_ENABLE_PUGIXML == 1
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96 std::string s;
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97 Toolbox::JsonToXml(s, value);
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98
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99 output_.SetContentType(MIME_XML_UTF8);
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100 output_.Answer(s);
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101 #else
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102 throw OrthancException(ErrorCode_InternalError,
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103 "Orthanc was compiled without XML support");
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104 #endif
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105 }
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106 else
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107 {
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108 std::string s;
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109 Toolbox::WriteStyledJson(s, value);
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110 output_.SetContentType(MIME_JSON_UTF8);
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111 output_.Answer(s);
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112 }
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113
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114 alreadySent_ = true;
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115 }
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116
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117 void RestApiOutput::AnswerBuffer(const std::string& buffer,
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118 MimeType contentType)
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119 {
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120 AnswerBuffer(buffer.size() == 0 ? NULL : buffer.c_str(),
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121 buffer.size(), contentType);
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122 }
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123
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124 void RestApiOutput::AnswerBuffer(const void* buffer,
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125 size_t length,
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126 MimeType contentType)
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127 {
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128 CheckStatus();
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129
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130 if (convertJsonToXml_ &&
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131 contentType == MimeType_Json)
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132 {
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133 Json::Value json;
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134 if (Toolbox::ReadJson(json, buffer, length))
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135 {
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136 AnswerJson(json);
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137 }
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138 else
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139 {
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140 throw OrthancException(ErrorCode_BadFileFormat,
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141 "The REST API tries and answers with an invalid JSON file");
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142 }
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143 }
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144 else
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145 {
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146 output_.SetContentType(contentType);
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147 output_.Answer(buffer, length);
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148 alreadySent_ = true;
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149 }
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150 }
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151
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152 void RestApiOutput::Redirect(const std::string& path)
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153 {
211
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154 CheckStatus();
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155 output_.Redirect(path);
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156 alreadySent_ = true;
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157 }
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158
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159 void RestApiOutput::SignalErrorInternal(HttpStatus status,
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160 const char* message,
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161 size_t messageSize)
216
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162 {
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163 if (status != HttpStatus_400_BadRequest &&
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164 status != HttpStatus_403_Forbidden &&
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165 status != HttpStatus_500_InternalServerError &&
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166 status != HttpStatus_415_UnsupportedMediaType)
216
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167 {
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168 throw OrthancException(ErrorCode_BadHttpStatusInRest);
216
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169 }
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170
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171 CheckStatus();
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172 output_.SendStatus(status, message, messageSize);
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173 alreadySent_ = true;
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174 }
330
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175
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176 void RestApiOutput::SignalError(HttpStatus status)
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177 {
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178 SignalErrorInternal(status, NULL, 0);
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179 }
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180
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181 void RestApiOutput::SignalError(HttpStatus status,
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182 const std::string& message)
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183 {
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184 SignalErrorInternal(status, message.c_str(), message.size());
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185 }
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186
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187 void RestApiOutput::SetCookie(const std::string& name,
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188 const std::string& value,
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189 unsigned int maxAge)
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190 {
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191 if (name.find(";") != std::string::npos ||
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192 name.find(" ") != std::string::npos ||
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193 value.find(";") != std::string::npos ||
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194 value.find(" ") != std::string::npos)
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195 {
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196 throw OrthancException(ErrorCode_NotImplemented);
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197 }
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198
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199 CheckStatus();
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200
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201 std::string v = value + ";path=/";
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202
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203 if (maxAge != 0)
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204 {
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205 v += ";max-age=" + boost::lexical_cast<std::string>(maxAge);
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206 }
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207
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208 output_.SetCookie(name, v);
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209 }
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210
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211 void RestApiOutput::ResetCookie(const std::string& name)
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212 {
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213 // This marks the cookie to be deleted by the browser in 1 second,
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214 // and before it actually gets deleted, its value is set to the
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215 // empty string
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216 SetCookie(name, "", 1);
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217 }
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218
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219 void RestApiOutput::SetContentFilename(const char* filename)
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220 {
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221 output_.SetContentFilename(filename);
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222 }
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223 }