Mercurial > hg > orthanc
annotate Core/HttpClient.cpp @ 1064:cd20e2568fc2
fix tests
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 25 Jul 2014 16:13:36 +0200 |
| parents | cc4ff680e2a0 |
| children | b17b6bd59747 |
| rev | line source |
|---|---|
| 0 | 1 /** |
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2 * Orthanc - A Lightweight, RESTful DICOM Store |
| 689 | 3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, |
| 0 | 4 * Belgium |
| 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. |
| 0 | 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. |
| 0 | 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/>. |
| 0 | 30 **/ |
| 31 | |
| 32 | |
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33 #include "PrecompiledHeaders.h" |
| 0 | 34 #include "HttpClient.h" |
| 35 | |
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36 #include "../Core/Toolbox.h" |
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37 #include "../Core/OrthancException.h" |
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38 |
| 0 | 39 #include <string.h> |
| 40 #include <curl/curl.h> | |
| 41 | |
| 42 | |
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43 namespace Orthanc |
| 0 | 44 { |
| 45 struct HttpClient::PImpl | |
| 46 { | |
| 47 CURL* curl_; | |
| 48 struct curl_slist *postHeaders_; | |
| 49 }; | |
| 50 | |
| 51 | |
| 52 static CURLcode CheckCode(CURLcode code) | |
| 53 { | |
| 54 if (code != CURLE_OK) | |
| 55 { | |
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56 throw OrthancException("libCURL error: " + std::string(curl_easy_strerror(code))); |
| 0 | 57 } |
| 58 | |
| 59 return code; | |
| 60 } | |
| 61 | |
| 62 | |
| 63 static size_t CurlCallback(void *buffer, size_t size, size_t nmemb, void *payload) | |
| 64 { | |
| 65 std::string& target = *(static_cast<std::string*>(payload)); | |
| 66 | |
| 67 size_t length = size * nmemb; | |
| 68 if (length == 0) | |
| 69 return 0; | |
| 70 | |
| 71 size_t pos = target.size(); | |
| 72 | |
| 73 target.resize(pos + length); | |
| 74 memcpy(&target.at(pos), buffer, length); | |
| 75 | |
| 76 return length; | |
| 77 } | |
| 78 | |
| 79 | |
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80 void HttpClient::Setup() |
| 0 | 81 { |
| 82 pimpl_->postHeaders_ = NULL; | |
| 83 if ((pimpl_->postHeaders_ = curl_slist_append(pimpl_->postHeaders_, "Expect:")) == NULL) | |
| 84 { | |
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85 throw OrthancException(ErrorCode_NotEnoughMemory); |
| 0 | 86 } |
| 87 | |
| 88 pimpl_->curl_ = curl_easy_init(); | |
| 89 if (!pimpl_->curl_) | |
| 90 { | |
| 91 curl_slist_free_all(pimpl_->postHeaders_); | |
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92 throw OrthancException(ErrorCode_NotEnoughMemory); |
| 0 | 93 } |
| 94 | |
| 95 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_WRITEFUNCTION, &CurlCallback)); | |
| 96 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_HEADER, 0)); | |
| 97 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_FOLLOWLOCATION, 1)); | |
| 98 | |
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99 #if ORTHANC_SSL_ENABLED == 1 |
| 26 | 100 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_SSL_VERIFYPEER, 0)); |
| 101 #endif | |
| 102 | |
| 456 | 103 // This fixes the "longjmp causes uninitialized stack frame" crash |
| 104 // that happens on modern Linux versions. | |
| 105 // http://stackoverflow.com/questions/9191668/error-longjmp-causes-uninitialized-stack-frame | |
| 106 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_NOSIGNAL, 1)); | |
| 107 | |
| 0 | 108 url_ = ""; |
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109 method_ = HttpMethod_Get; |
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110 lastStatus_ = HttpStatus_200_Ok; |
| 0 | 111 isVerbose_ = false; |
| 112 } | |
| 113 | |
| 114 | |
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115 HttpClient::HttpClient() : pimpl_(new PImpl) |
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116 { |
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117 Setup(); |
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118 } |
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119 |
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120 |
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121 HttpClient::HttpClient(const HttpClient& other) : pimpl_(new PImpl) |
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122 { |
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123 Setup(); |
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124 |
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125 if (other.IsVerbose()) |
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126 { |
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127 SetVerbose(true); |
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128 } |
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129 |
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130 if (other.credentials_.size() != 0) |
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131 { |
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132 credentials_ = other.credentials_; |
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133 } |
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134 } |
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135 |
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136 |
| 0 | 137 HttpClient::~HttpClient() |
| 138 { | |
| 139 curl_easy_cleanup(pimpl_->curl_); | |
| 140 curl_slist_free_all(pimpl_->postHeaders_); | |
| 141 } | |
| 142 | |
| 143 | |
| 144 void HttpClient::SetVerbose(bool isVerbose) | |
| 145 { | |
| 146 isVerbose_ = isVerbose; | |
| 147 | |
| 148 if (isVerbose_) | |
| 149 { | |
| 150 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_VERBOSE, 1)); | |
| 151 } | |
| 152 else | |
| 153 { | |
| 154 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_VERBOSE, 0)); | |
| 155 } | |
| 156 } | |
| 157 | |
| 158 | |
| 159 bool HttpClient::Apply(std::string& answer) | |
| 160 { | |
| 161 answer.clear(); | |
| 162 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_URL, url_.c_str())); | |
| 163 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_WRITEDATA, &answer)); | |
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164 |
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165 // Reset the parameters from previous calls to Apply() |
| 0 | 166 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_HTTPHEADER, NULL)); |
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167 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_HTTPGET, 0L)); |
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168 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POST, 0L)); |
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169 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_NOBODY, 0L)); |
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170 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_CUSTOMREQUEST, NULL)); |
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171 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POSTFIELDS, NULL)); |
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172 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POSTFIELDSIZE, 0)); |
| 0 | 173 |
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174 if (credentials_.size() != 0) |
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175 { |
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176 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_USERPWD, credentials_.c_str())); |
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177 } |
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178 |
| 0 | 179 switch (method_) |
| 180 { | |
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181 case HttpMethod_Get: |
| 0 | 182 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_HTTPGET, 1L)); |
| 183 break; | |
| 184 | |
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185 case HttpMethod_Post: |
| 0 | 186 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POST, 1L)); |
| 187 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_HTTPHEADER, pimpl_->postHeaders_)); | |
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188 break; |
| 0 | 189 |
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190 case HttpMethod_Delete: |
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191 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_NOBODY, 1L)); |
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192 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_CUSTOMREQUEST, "DELETE")); |
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193 break; |
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194 |
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195 case HttpMethod_Put: |
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196 // http://stackoverflow.com/a/7570281/881731: Don't use |
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197 // CURLOPT_PUT if there is a body |
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198 |
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199 // CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_PUT, 1L)); |
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200 |
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201 curl_easy_setopt(pimpl_->curl_, CURLOPT_CUSTOMREQUEST, "PUT"); /* !!! */ |
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202 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_HTTPHEADER, pimpl_->postHeaders_)); |
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203 break; |
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204 |
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205 default: |
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206 throw OrthancException(ErrorCode_InternalError); |
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207 } |
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208 |
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209 |
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210 if (method_ == HttpMethod_Post || |
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211 method_ == HttpMethod_Put) |
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212 { |
| 0 | 213 if (postData_.size() > 0) |
| 214 { | |
| 215 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POSTFIELDS, postData_.c_str())); | |
| 216 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POSTFIELDSIZE, postData_.size())); | |
| 217 } | |
| 218 else | |
| 219 { | |
| 220 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POSTFIELDS, NULL)); | |
| 221 CheckCode(curl_easy_setopt(pimpl_->curl_, CURLOPT_POSTFIELDSIZE, 0)); | |
| 222 } | |
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223 } |
| 0 | 224 |
| 225 | |
| 226 // Do the actual request | |
| 227 CheckCode(curl_easy_perform(pimpl_->curl_)); | |
| 228 | |
| 229 long status; | |
| 230 CheckCode(curl_easy_getinfo(pimpl_->curl_, CURLINFO_RESPONSE_CODE, &status)); | |
| 231 | |
| 232 if (status == 0) | |
| 233 { | |
| 234 // This corresponds to a call to an inexistent host | |
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235 lastStatus_ = HttpStatus_500_InternalServerError; |
| 0 | 236 } |
| 237 else | |
| 238 { | |
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239 lastStatus_ = static_cast<HttpStatus>(status); |
| 0 | 240 } |
| 241 | |
| 242 return (status >= 200 && status < 300); | |
| 243 } | |
| 244 | |
| 245 | |
| 246 bool HttpClient::Apply(Json::Value& answer) | |
| 247 { | |
| 248 std::string s; | |
| 249 if (Apply(s)) | |
| 250 { | |
| 251 Json::Reader reader; | |
| 252 return reader.parse(s, answer); | |
| 253 } | |
| 254 else | |
| 255 { | |
| 256 return false; | |
| 257 } | |
| 258 } | |
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259 |
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260 |
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261 void HttpClient::SetCredentials(const char* username, |
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262 const char* password) |
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263 { |
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264 credentials_ = std::string(username) + ":" + std::string(password); |
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265 } |
| 457 | 266 |
| 267 | |
| 268 void HttpClient::GlobalInitialize() | |
| 269 { | |
| 270 CheckCode(curl_global_init(CURL_GLOBAL_DEFAULT)); | |
| 271 } | |
| 272 | |
| 273 void HttpClient::GlobalFinalize() | |
| 274 { | |
| 275 curl_global_cleanup(); | |
| 276 } | |
| 0 | 277 } |