annotate Core/RestApi/RestApiOutput.cpp @ 1161:82cbf1480aac db-changes

mainline->db-changes integration
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 17 Sep 2014 12:38:28 +0200
parents ba5c0908600c
children 0561f2087cc9
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
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4 * 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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31
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32
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33 #include "../PrecompiledHeaders.h"
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34 #include "RestApiOutput.h"
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35
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36 #include <boost/lexical_cast.hpp>
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37 #include <glog/logging.h>
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38
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39 #include "../OrthancException.h"
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40
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41 namespace Orthanc
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42 {
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43 RestApiOutput::RestApiOutput(HttpOutput& output) :
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44 output_(output),
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45 convertJsonToXml_(false)
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46 {
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47 alreadySent_ = false;
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48 }
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49
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50 RestApiOutput::~RestApiOutput()
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51 {
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52 }
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54 void RestApiOutput::Finalize()
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55 {
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56 if (!alreadySent_)
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57 {
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58 output_.SendStatus(HttpStatus_404_NotFound);
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59 }
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60 }
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61
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62 void RestApiOutput::CheckStatus()
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63 {
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64 if (alreadySent_)
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65 {
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66 throw OrthancException(ErrorCode_BadSequenceOfCalls);
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67 }
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68 }
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69
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70 void RestApiOutput::AnswerFile(HttpFileSender& sender)
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71 {
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72 CheckStatus();
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73 sender.Send(output_);
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74 alreadySent_ = true;
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75 }
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76
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77 void RestApiOutput::AnswerJson(const Json::Value& value)
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78 {
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79 CheckStatus();
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80
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81 if (convertJsonToXml_)
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82 {
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83 #if ORTHANC_PUGIXML_ENABLED == 1
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84 std::string s;
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85 Toolbox::JsonToXml(s, value);
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86 output_.SetContentType("application/xml");
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87 output_.SendBody(s);
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88 #else
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89 LOG(ERROR) << "Orthanc was compiled without XML support";
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90 throw OrthancException(ErrorCode_InternalError);
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91 #endif
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92 }
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93 else
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94 {
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95 Json::StyledWriter writer;
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96 output_.SetContentType("application/json");
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97 output_.SendBody(writer.write(value));
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98 }
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99
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100 alreadySent_ = true;
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101 }
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102
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103 void RestApiOutput::AnswerBuffer(const std::string& buffer,
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104 const std::string& contentType)
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105 {
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106 CheckStatus();
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107 output_.SetContentType(contentType.c_str());
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108 output_.SendBody(buffer);
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109 alreadySent_ = true;
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110 }
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111
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112 void RestApiOutput::AnswerBuffer(const void* buffer,
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113 size_t length,
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114 const std::string& contentType)
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115 {
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116 CheckStatus();
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117 output_.SetContentType(contentType.c_str());
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118 output_.SendBody(buffer, length);
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119 alreadySent_ = true;
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120 }
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121
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122 void RestApiOutput::Redirect(const std::string& path)
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123 {
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124 CheckStatus();
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125 output_.Redirect(path);
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126 alreadySent_ = true;
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127 }
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128
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129 void RestApiOutput::SignalError(HttpStatus status)
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130 {
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131 if (status != HttpStatus_403_Forbidden &&
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132 status != HttpStatus_415_UnsupportedMediaType)
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133 {
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134 throw OrthancException("This HTTP status is not allowed in a REST API");
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135 }
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137 CheckStatus();
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138 output_.SendStatus(status);
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139 alreadySent_ = true;
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140 }
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141
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142 void RestApiOutput::SetCookie(const std::string& name,
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143 const std::string& value,
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144 unsigned int maxAge)
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145 {
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146 if (name.find(";") != std::string::npos ||
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147 name.find(" ") != std::string::npos ||
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148 value.find(";") != std::string::npos ||
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149 value.find(" ") != std::string::npos)
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150 {
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151 throw OrthancException(ErrorCode_NotImplemented);
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152 }
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153
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154 CheckStatus();
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155
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156 std::string v = value + ";path=/";
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157
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158 if (maxAge != 0)
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159 {
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160 v += ";max-age=" + boost::lexical_cast<std::string>(maxAge);
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161 }
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162
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163 output_.SetCookie(name, v);
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164 }
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165
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166 void RestApiOutput::ResetCookie(const std::string& name)
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167 {
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168 // This marks the cookie to be deleted by the browser in 1 second,
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169 // and before it actually gets deleted, its value is set to the
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170 // empty string
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171 SetCookie(name, "", 1);
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172 }
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173 }