Mercurial > hg > orthanc-gcp
annotate Plugin/GoogleUpdater.cpp @ 30:f1ebec09b120
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 30 Jun 2020 07:44:54 +0200 |
| parents | d9e1b60a9aa6 |
| children | 16cf7c2eb806 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Google Cloud Platform credentials for DICOMweb and Orthanc | |
|
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3 * Copyright (C) 2019-2020 Osimis S.A., Belgium |
| 0 | 4 * |
| 5 * This program is free software: you can redistribute it and/or | |
| 6 * modify it under the terms of the GNU General Public License as | |
| 7 * published by the Free Software Foundation, either version 3 of the | |
| 8 * License, or (at your option) any later version. | |
| 9 * | |
| 10 * In addition, as a special exception, the copyright holders of this | |
| 11 * program give permission to link the code of its release with the | |
| 12 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 13 * that use the same license as the "OpenSSL" library), and distribute | |
| 14 * the linked executables. You must obey the GNU General Public License | |
| 15 * in all respects for all of the code used other than "OpenSSL". If you | |
| 16 * modify file(s) with this exception, you may extend this exception to | |
| 17 * your version of the file(s), but you are not obligated to do so. If | |
| 18 * you do not wish to do so, delete this exception statement from your | |
| 19 * version. If you delete this exception statement from all source files | |
| 20 * in the program, then also delete it here. | |
| 21 * | |
| 22 * This program is distributed in the hope that it will be useful, but | |
| 23 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 25 * General Public License for more details. | |
| 26 * | |
| 27 * You should have received a copy of the GNU General Public License | |
| 28 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 29 **/ | |
| 30 | |
| 31 | |
| 32 #include "GoogleUpdater.h" | |
| 33 | |
| 34 #include "GoogleConfiguration.h" | |
| 35 | |
| 36 #include <google/cloud/storage/internal/curl_handle_factory.h> | |
| 37 #include <google/cloud/storage/oauth2/google_credentials.h> | |
| 38 | |
| 39 | |
| 40 namespace | |
| 41 { | |
| 42 class CurlBuilder : public google::cloud::storage::internal::CurlRequestBuilder | |
| 43 { | |
| 44 private: | |
| 45 class HandleFactory : public google::cloud::storage::internal::DefaultCurlHandleFactory | |
| 46 { | |
| 47 public: | |
| 48 google::cloud::storage::internal::CurlPtr CreateHandle() override | |
| 49 { | |
| 50 google::cloud::storage::internal::CurlPtr handle | |
| 51 (google::cloud::storage::internal::DefaultCurlHandleFactory::CreateHandle()); | |
| 52 | |
| 53 const GoogleConfiguration& configuration = GoogleConfiguration::GetInstance(); | |
| 54 | |
| 55 long timeout = static_cast<long>(configuration.GetTimeoutSeconds()); | |
| 56 | |
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57 if (!configuration.GetCaInfo().empty() && |
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58 curl_easy_setopt(handle.get(), CURLOPT_CAINFO, configuration.GetCaInfo().c_str()) != CURLE_OK) |
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59 { |
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60 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError, |
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61 "Cannot set the trusted Certificate Authorities"); |
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62 } |
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63 |
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64 bool ok; |
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65 |
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66 if (configuration.IsHttpsVerifyPeers()) |
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67 { |
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68 ok = (curl_easy_setopt(handle.get(), CURLOPT_SSL_VERIFYHOST, 2) == CURLE_OK && |
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69 curl_easy_setopt(handle.get(), CURLOPT_SSL_VERIFYPEER, 1) == CURLE_OK && |
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70 curl_easy_setopt(handle.get(), CURLOPT_TIMEOUT, timeout) == CURLE_OK); |
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71 } |
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72 else |
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73 { |
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74 ok = (curl_easy_setopt(handle.get(), CURLOPT_SSL_VERIFYHOST, 0) == CURLE_OK && |
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75 curl_easy_setopt(handle.get(), CURLOPT_SSL_VERIFYPEER, 0) == CURLE_OK); |
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76 } |
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77 |
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78 if (!ok) |
| 0 | 79 { |
| 80 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError, | |
| 81 "Cannot initialize a libcurl handle"); | |
| 82 } | |
| 83 | |
| 84 return handle; | |
| 85 } | |
| 86 | |
| 87 google::cloud::storage::internal::CurlMulti CreateMultiHandle() override | |
| 88 { | |
| 89 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
| 90 } | |
| 91 }; | |
| 92 | |
| 93 public: | |
| 17 | 94 CurlBuilder(const std::string& base_url, |
| 95 const std::shared_ptr<google::cloud::storage::internal::CurlHandleFactory>& factory) : | |
| 0 | 96 CurlRequestBuilder(base_url, std::make_shared<HandleFactory>()) |
| 97 { | |
| 98 } | |
| 99 }; | |
| 100 } | |
| 101 | |
| 102 | |
| 103 | |
| 104 static boost::posix_time::ptime GetNow() | |
| 105 { | |
| 106 return boost::posix_time::second_clock::local_time(); | |
| 107 } | |
| 108 | |
| 109 | |
| 110 void GoogleUpdater::Worker(const State* state, | |
| 111 const GoogleAccount* account, | |
| 112 long refreshIntervalSeconds) | |
| 113 { | |
| 114 std::shared_ptr<google::cloud::storage::oauth2::Credentials> credentials; | |
| 115 | |
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116 try |
| 0 | 117 { |
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118 switch (account->GetType()) |
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119 { |
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120 case GoogleAccount::Type_ServiceAccount: |
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121 credentials = std::make_shared<google::cloud::storage::oauth2::ServiceAccountCredentials |
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122 <CurlBuilder>>(account->GetServiceAccount()); |
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123 break; |
| 0 | 124 |
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125 case GoogleAccount::Type_AuthorizedUser: |
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126 credentials = std::make_shared<google::cloud::storage::oauth2::AuthorizedUserCredentials |
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127 <CurlBuilder>>(account->GetAuthorizedUser()); |
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128 break; |
| 0 | 129 |
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130 default: |
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131 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
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132 } |
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133 } |
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134 catch (Orthanc::OrthancException& e) |
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135 { |
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136 credentials.reset(); |
| 0 | 137 } |
| 138 | |
| 139 if (credentials.get() == NULL) | |
| 140 { | |
| 141 LOG(ERROR) << "Cannot initialize the token updater for Google Cloud Platform account: " | |
| 142 << account->GetName(); | |
| 143 return; | |
| 144 } | |
| 145 | |
| 146 const std::string dicomWebPluginRoot = GoogleConfiguration::GetInstance().GetDicomWebPluginRoot(); | |
| 147 const std::string baseGoogleUrl = GoogleConfiguration::GetInstance().GetBaseGoogleUrl(); | |
| 148 | |
| 149 std::string lastToken; | |
| 150 std::unique_ptr<boost::posix_time::ptime> lastUpdate; | |
| 151 | |
| 152 while (*state == State_Running) | |
| 153 { | |
| 154 if (lastUpdate.get() == NULL || | |
| 155 (GetNow() - *lastUpdate).total_seconds() >= refreshIntervalSeconds) | |
| 156 { | |
| 157 google::cloud::StatusOr<std::string> token = credentials->AuthorizationHeader(); | |
| 158 if (!token) | |
| 159 { | |
| 160 LOG(WARNING) << "Cannot generate Google Cloud Platform token for account: " << account->GetName(); | |
| 161 } | |
| 162 else if (*token != lastToken && | |
| 163 account->UpdateServerDefinition(dicomWebPluginRoot, baseGoogleUrl, *token)) | |
| 164 { | |
| 165 lastToken = *token; | |
| 166 } | |
| 167 | |
| 168 lastUpdate.reset(new boost::posix_time::ptime(GetNow())); | |
| 169 } | |
| 170 | |
| 171 boost::this_thread::sleep(boost::posix_time::milliseconds(100)); | |
| 172 } | |
| 173 } | |
| 174 | |
| 175 | |
| 176 GoogleUpdater::~GoogleUpdater() | |
| 177 { | |
| 178 if (state_ == State_Running) | |
| 179 { | |
| 180 LOG(ERROR) << "GoogleUpdater::Stop() should have been manually called"; | |
| 181 Stop(); | |
| 182 } | |
| 183 } | |
| 184 | |
| 185 | |
| 186 void GoogleUpdater::Start() | |
| 187 { | |
| 188 if (state_ != State_Setup) | |
| 189 { | |
| 190 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); | |
| 191 } | |
| 192 | |
| 193 state_ = State_Running; | |
| 194 | |
| 195 const GoogleConfiguration& configuration = GoogleConfiguration::GetInstance(); | |
| 196 | |
| 197 workers_.resize(configuration.GetAccountsCount()); | |
| 198 | |
| 199 for (size_t i = 0; i < workers_.size(); i++) | |
| 200 { | |
| 201 workers_[i] = new boost::thread(Worker, &state_, &configuration.GetAccount(i), | |
| 202 configuration.GetRefreshIntervalSeconds()); | |
| 203 } | |
| 204 } | |
| 205 | |
| 206 | |
| 207 void GoogleUpdater::Stop() | |
| 208 { | |
| 209 if (state_ == State_Running) | |
| 210 { | |
| 211 state_ = State_Done; | |
| 212 | |
| 213 for (size_t i = 0; i < workers_.size(); i++) | |
| 214 { | |
| 215 if (workers_[i] != NULL) | |
| 216 { | |
| 217 if (workers_[i]->joinable()) | |
| 218 { | |
| 219 workers_[i]->join(); | |
| 220 } | |
| 221 | |
| 222 delete workers_[i]; | |
| 223 } | |
| 224 } | |
| 225 | |
| 226 workers_.clear(); | |
| 227 } | |
| 228 } |