annotate Core/HttpServer/HttpOutput.cpp @ 455:238a0c99ced2

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 04 Jul 2013 15:25:15 +0200
parents bdd72233b105
children c9a5d72f8481
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2013 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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33 #include "HttpOutput.h"
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34
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35 #include <iostream>
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36 #include <vector>
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37 #include <stdio.h>
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38 #include <boost/lexical_cast.hpp>
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39 #include "../OrthancException.h"
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40 #include "../Toolbox.h"
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41 #include "../../OrthancCppClient/HttpException.h"
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42
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43 namespace Orthanc
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44 {
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45 void HttpOutput::SendString(const std::string& s)
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46 {
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47 if (s.size() > 0)
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48 {
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49 Send(&s[0], s.size());
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50 }
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51 }
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52
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53 void HttpOutput::PrepareOkHeader(Header& header,
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54 const char* contentType,
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55 bool hasContentLength,
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56 uint64_t contentLength,
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57 const char* contentFilename)
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58 {
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59 header.clear();
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60
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61 if (contentType && contentType[0] != '\0')
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62 {
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63 header.push_back(std::make_pair("Content-Type", std::string(contentType)));
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64 }
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65
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66 if (hasContentLength)
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67 {
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68 header.push_back(std::make_pair("Content-Length", boost::lexical_cast<std::string>(contentLength)));
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69 }
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71 if (contentFilename && contentFilename[0] != '\0')
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72 {
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73 std::string attachment = "attachment; filename=\"" + std::string(contentFilename) + "\"";
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74 header.push_back(std::make_pair("Content-Disposition", attachment));
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75 }
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76 }
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78 void HttpOutput::SendOkHeader(const char* contentType,
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79 bool hasContentLength,
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80 uint64_t contentLength,
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81 const char* contentFilename)
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82 {
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83 Header header;
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84 PrepareOkHeader(header, contentType, hasContentLength, contentLength, contentFilename);
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85 SendOkHeader(header);
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86 }
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87
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88 void HttpOutput::SendOkHeader(const Header& header)
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89 {
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90 std::string s = "HTTP/1.1 200 OK\r\n";
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92 for (Header::const_iterator
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93 it = header.begin(); it != header.end(); it++)
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94 {
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95 s += it->first + ": " + it->second + "\r\n";
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96 }
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98 s += "\r\n";
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99
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100 Send(&s[0], s.size());
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101 }
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103
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104 void HttpOutput::SendMethodNotAllowedError(const std::string& allowed)
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105 {
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106 std::string s =
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107 "HTTP/1.1 405 " + std::string(HttpException::GetDescription(Orthanc_HttpStatus_405_MethodNotAllowed)) +
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108 "\r\nAllow: " + allowed +
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109 "\r\n\r\n";
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110 Send(&s[0], s.size());
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111 }
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113
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114 void HttpOutput::SendHeader(Orthanc_HttpStatus status)
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115 {
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116 if (status == Orthanc_HttpStatus_200_Ok ||
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117 status == Orthanc_HttpStatus_405_MethodNotAllowed)
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118 {
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119 throw OrthancException("Please use the dedicated methods to this HTTP status code in HttpOutput");
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120 }
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121
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122 SendHeaderInternal(status);
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123 }
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125
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126 void HttpOutput::SendHeaderInternal(Orthanc_HttpStatus status)
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127 {
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128 std::string s = "HTTP/1.1 " +
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129 boost::lexical_cast<std::string>(status) +
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130 " " + std::string(HttpException::GetDescription(status)) +
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131 "\r\n\r\n";
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132 Send(&s[0], s.size());
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133 }
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136 void HttpOutput::AnswerBufferWithContentType(const std::string& buffer,
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137 const std::string& contentType)
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138 {
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139 SendOkHeader(contentType.c_str(), true, buffer.size(), NULL);
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140 SendString(buffer);
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141 }
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143
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144 void HttpOutput::PrepareCookies(Header& header,
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145 const HttpHandler::Arguments& cookies)
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146 {
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147 for (HttpHandler::Arguments::const_iterator it = cookies.begin();
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148 it != cookies.end(); it++)
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149 {
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150 header.push_back(std::make_pair("Set-Cookie", it->first + "=" + it->second));
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151 }
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152 }
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153
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154
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155 void HttpOutput::AnswerBufferWithContentType(const std::string& buffer,
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156 const std::string& contentType,
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157 const HttpHandler::Arguments& cookies)
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158 {
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159 Header header;
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160 PrepareOkHeader(header, contentType.c_str(), true, buffer.size(), NULL);
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161 PrepareCookies(header, cookies);
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162 SendOkHeader(header);
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163 SendString(buffer);
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164 }
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165
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166
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167 void HttpOutput::AnswerBufferWithContentType(const void* buffer,
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168 size_t size,
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169 const std::string& contentType)
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170 {
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171 SendOkHeader(contentType.c_str(), true, size, NULL);
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172 Send(buffer, size);
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173 }
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174
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175
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176 void HttpOutput::AnswerBufferWithContentType(const void* buffer,
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177 size_t size,
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178 const std::string& contentType,
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179 const HttpHandler::Arguments& cookies)
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180 {
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181 Header header;
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182 PrepareOkHeader(header, contentType.c_str(), true, size, NULL);
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183 PrepareCookies(header, cookies);
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184 SendOkHeader(header);
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185 Send(buffer, size);
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186 }
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187
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188
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189
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190 void HttpOutput::Redirect(const std::string& path)
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191 {
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192 std::string s =
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193 "HTTP/1.1 301 " + std::string(HttpException::GetDescription(Orthanc_HttpStatus_301_MovedPermanently)) +
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194 "\r\nLocation: " + path +
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195 "\r\n\r\n";
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196 Send(&s[0], s.size());
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197 }
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198 }