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annotate OrthancFramework/Sources/HttpClient.h @ 4792:434843934307 storage-cache

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Added a StorageCache in the StorageAccessor
author Alain Mazy <am@osimis.io>
date Thu, 30 Sep 2021 12:14:19 +0200
parents e8967149d87a
children 7053502fbf97
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) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Lesser General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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23 #pragma once
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24
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25 #include "Enumerations.h"
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26 #include "OrthancFramework.h"
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27 #include "WebServiceParameters.h"
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28
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29 #include <string>
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30 #include <boost/noncopyable.hpp>
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31 #include <boost/shared_ptr.hpp>
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32 #include <json/value.h>
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34 #if !defined(ORTHANC_ENABLE_CURL)
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35 # error The macro ORTHANC_ENABLE_CURL must be defined
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36 #endif
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38 #if ORTHANC_ENABLE_CURL != 1
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39 # error Support for curl is disabled, cannot use this file
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40 #endif
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41
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42 #if !defined(ORTHANC_ENABLE_SSL)
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43 # error The macro ORTHANC_ENABLE_SSL must be defined
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44 #endif
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46 #if !defined(ORTHANC_ENABLE_PKCS11)
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47 # error The macro ORTHANC_ENABLE_PKCS11 must be defined
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48 #endif
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51 namespace Orthanc
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52 {
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53 class ORTHANC_PUBLIC HttpClient : public boost::noncopyable
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54 {
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55 public:
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56 typedef std::map<std::string, std::string> HttpHeaders;
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58 class IRequestBody : public boost::noncopyable
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59 {
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60 public:
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61 virtual ~IRequestBody()
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62 {
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63 }
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64
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65 virtual bool ReadNextChunk(std::string& chunk) = 0;
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66 };
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67
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68 class IAnswer : public boost::noncopyable
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69 {
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70 public:
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71 virtual ~IAnswer()
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72 {
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73 }
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75 virtual void AddHeader(const std::string& key,
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76 const std::string& value) = 0;
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78 virtual void AddChunk(const void* data,
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79 size_t size) = 0;
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80 };
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81
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82 private:
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83 class CurlHeaders;
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84 class CurlRequestBody;
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85 class CurlAnswer;
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86 class DefaultAnswer;
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87 class GlobalParameters;
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88
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89 struct PImpl;
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90 boost::shared_ptr<PImpl> pimpl_;
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91
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92 std::string url_;
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93 std::string credentials_;
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94 HttpMethod method_;
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95 HttpStatus lastStatus_;
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96 std::string body_; // This only makes sense for POST and PUT requests
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97 bool isVerbose_;
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98 long timeout_;
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99 std::string proxy_;
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100 bool verifyPeers_;
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101 std::string caCertificates_;
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102 std::string clientCertificateFile_;
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103 std::string clientCertificateKeyFile_;
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104 std::string clientCertificateKeyPassword_;
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105 bool pkcs11Enabled_;
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106 bool headersToLowerCase_;
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107 bool redirectionFollowed_;
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108
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109 // New in Orthanc 1.9.3 to avoid memcpy()
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110 bool hasExternalBody_;
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111 const void* externalBodyData_;
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112 size_t externalBodySize_;
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113
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114 void Setup();
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115
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116 void operator= (const HttpClient&); // Assignment forbidden
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117 HttpClient(const HttpClient& base); // Copy forbidden
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118
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119 bool ApplyInternal(CurlAnswer& answer);
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120
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121 bool ApplyInternal(std::string& answerBody,
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122 HttpHeaders* answerHeaders);
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123
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124 bool ApplyInternal(Json::Value& answerBody,
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125 HttpHeaders* answerHeaders);
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126
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127 public:
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128 HttpClient();
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129
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130 HttpClient(const WebServiceParameters& service,
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131 const std::string& uri);
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132
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133 ~HttpClient();
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134
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135 void SetUrl(const char* url);
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136
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137 void SetUrl(const std::string& url);
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138
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139 const std::string& GetUrl() const;
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140
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141 void SetMethod(HttpMethod method);
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142
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143 HttpMethod GetMethod() const;
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144
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145 void SetTimeout(long seconds);
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146
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147 long GetTimeout() const;
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148
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149 void AssignBody(const std::string& data);
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150
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151 void AssignBody(const void* data,
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152 size_t size);
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153
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154 void SetBody(IRequestBody& body);
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155
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156 // New in Orthanc 1.9.3: The "data" buffer must have a lifetime
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157 // that is longer than the HttpClient object
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158 void SetExternalBody(const void* data,
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159 size_t size);
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160
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161 void SetExternalBody(const std::string& data);
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162
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163 void ClearBody();
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164
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165 void SetVerbose(bool isVerbose);
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166
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167 bool IsVerbose() const;
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168
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169 void AddHeader(const std::string& key,
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170 const std::string& value);
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171
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172 void ClearHeaders();
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173
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174 bool Apply(IAnswer& answer);
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175
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176 bool Apply(std::string& answerBody);
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177
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178 bool Apply(Json::Value& answerBody);
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179
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180 bool Apply(std::string& answerBody,
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181 HttpHeaders& answerHeaders);
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182
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183 bool Apply(Json::Value& answerBody,
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184 HttpHeaders& answerHeaders);
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185
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186 HttpStatus GetLastStatus() const;
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187
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188 void SetCredentials(const char* username,
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189 const char* password);
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190
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191 void SetProxy(const std::string& proxy);
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192
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193 void SetHttpsVerifyPeers(bool verify);
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194
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195 bool IsHttpsVerifyPeers() const;
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196
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197 void SetHttpsCACertificates(const std::string& certificates);
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198
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199 const std::string& GetHttpsCACertificates() const;
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200
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201 void SetClientCertificate(const std::string& certificateFile,
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202 const std::string& certificateKeyFile,
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203 const std::string& certificateKeyPassword);
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204
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205 void SetPkcs11Enabled(bool enabled);
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206
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207 bool IsPkcs11Enabled() const;
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208
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209 const std::string& GetClientCertificateFile() const;
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210
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211 const std::string& GetClientCertificateKeyFile() const;
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212
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213 const std::string& GetClientCertificateKeyPassword() const;
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214
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215 void SetConvertHeadersToLowerCase(bool lowerCase);
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216
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217 bool IsConvertHeadersToLowerCase() const;
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218
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219 void SetRedirectionFollowed(bool follow);
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220
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221 bool IsRedirectionFollowed() const;
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222
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223 static void GlobalInitialize();
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224
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225 static void GlobalFinalize();
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226
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227 static void InitializePkcs11(const std::string& module,
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228 const std::string& pin,
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229 bool verbose);
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230
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231 static void ConfigureSsl(bool httpsVerifyPeers,
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232 const std::string& httpsCACertificates);
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233
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234 static void SetDefaultVerbose(bool verbose);
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235
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236 static void SetDefaultProxy(const std::string& proxy);
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237
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238 static void SetDefaultTimeout(long timeout);
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239
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240 void ApplyAndThrowException(IAnswer& answer);
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241
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242 void ApplyAndThrowException(std::string& answerBody);
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243
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244 void ApplyAndThrowException(Json::Value& answerBody);
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245
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246 void ApplyAndThrowException(std::string& answerBody,
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247 HttpHeaders& answerHeaders);
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248
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249 void ApplyAndThrowException(Json::Value& answerBody,
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250 HttpHeaders& answerHeaders);
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251
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252 static void ThrowException(HttpStatus status);
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253 };
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254 }