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1 /**
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2 * Cloud storage plugins for Orthanc
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37
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3 * Copyright (C) 2020-2021 Osimis S.A., Belgium
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1
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4 *
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5 * This program is free software: you can redistribute it and/or
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6 * modify it under the terms of the GNU Affero General Public License
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7 * as published by the Free Software Foundation, either version 3 of
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8 * the License, or (at your option) any later version.
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9 *
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10 * This program is distributed in the hope that it will be useful, but
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11 * WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 * Affero General Public License for more details.
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14 *
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15 * You should have received a copy of the GNU Affero General Public License
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16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 **/
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18
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19
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20 #include <orthanc/OrthancCPlugin.h>
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21 #include <OrthancPluginCppWrapper.h>
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22
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23 #include "EncryptionConfigurator.h"
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24
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25 bool ReadMasterKey(uint32_t& id, std::string& keyPath, const Json::Value& node)
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26 {
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27 if (!node.isArray() || node.size() != 2 || !node[0].isUInt() || !node[1].isString())
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28 {
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29 OrthancPlugins::LogWarning("Encryption: Invalid master key configuration");
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30 return false;
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31 }
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32
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33 id = node[0].asUInt();
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34 keyPath = node[1].asString();
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35
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36 return true;
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37 }
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38
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39
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40 EncryptionHelpers* EncryptionConfigurator::CreateEncryptionHelpers(const OrthancPlugins::OrthancConfiguration& cryptoSection)
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41 {
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42 bool enabled = cryptoSection.GetBooleanValue("Enable", true);
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43
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44 if (!enabled)
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45 {
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46 return nullptr;
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47 }
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48
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49 Json::Value cryptoJson = cryptoSection.GetJson();
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50
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51 if (!cryptoJson.isMember("MasterKey") || !cryptoJson["MasterKey"].isArray())
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52 {
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53 OrthancPlugins::LogWarning("Encryption: MasterKey missing. Unable to initialize encryption");
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54 return nullptr;
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55 }
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56
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57 unsigned int maxConcurrentInputSizeInMb = cryptoSection.GetUnsignedIntegerValue("MaxConcurrentInputSize", 1024);
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58
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59 std::unique_ptr<EncryptionHelpers> crypto(new EncryptionHelpers(maxConcurrentInputSizeInMb * 1024*1024));
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60
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61 uint32_t masterKeyId;
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62 std::string masterKeyPath;
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63
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64 if (!ReadMasterKey(masterKeyId, masterKeyPath, cryptoJson["MasterKey"]))
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65 {
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66 return nullptr;
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67 }
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68 crypto->SetCurrentMasterKey(masterKeyId, masterKeyPath);
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69
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70 if (cryptoJson.isMember("PreviousMasterKeys") && cryptoJson["PreviousMasterKeys"].isArray())
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71 {
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72 for (size_t i = 0; i < cryptoJson["PreviousMasterKeys"].size(); i++)
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73 {
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74 uint32_t keyId;
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75 std::string keyPath;
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76 if (!ReadMasterKey(keyId, keyPath, cryptoJson["PreviousMasterKeys"][(unsigned int)i]))
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77 {
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78 return nullptr;
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79 }
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80 crypto->AddPreviousMasterKey(keyId, keyPath);
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81 }
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82 }
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83
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84 return crypto.release();
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85 }
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