Mercurial > hg > orthanc-authorization
annotate Plugin/PermissionParser.cpp @ 155:6673a963ddf0
sync
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 22 Mar 2024 15:08:48 +0100 |
| parents | 9be1ee2b8fe1 |
| children | c4b908970ae4 |
| rev | line source |
|---|---|
| 71 | 1 /** |
| 2 * Advanced authorization plugin for Orthanc | |
| 3 * Copyright (C) 2017-2023 Osimis S.A., Belgium | |
| 150 | 4 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium |
| 71 | 5 * |
| 6 * This program is free software: you can redistribute it and/or | |
| 7 * modify it under the terms of the GNU Affero General Public License | |
| 8 * as published by the Free Software Foundation, either version 3 of | |
| 9 * the License, or (at your option) any later version. | |
| 10 * | |
| 11 * This program is distributed in the hope that it will be useful, but | |
| 12 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 * Affero General Public License for more details. | |
| 15 * | |
| 16 * You should have received a copy of the GNU Affero General Public License | |
| 17 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 18 **/ | |
| 19 | |
| 20 #include "PermissionParser.h" | |
| 21 | |
| 22 #include <Toolbox.h> | |
| 23 #include <OrthancException.h> | |
| 24 #include <Logging.h> | |
| 25 | |
| 26 namespace OrthancPlugins | |
| 27 { | |
| 28 PermissionPattern::PermissionPattern(const OrthancPluginHttpMethod& method, const std::string& patternRegex, const std::string& permissions) : | |
| 29 method(method), | |
| 30 pattern(patternRegex) | |
| 31 { | |
| 74 | 32 if (!permissions.empty()) |
| 33 { | |
| 34 std::vector<std::string> permissionsVector; | |
| 35 Orthanc::Toolbox::TokenizeString(permissionsVector, permissions, '|'); | |
| 71 | 36 |
| 74 | 37 for (size_t i = 0; i < permissionsVector.size(); ++i) |
| 38 { | |
| 39 this->permissions.insert(permissionsVector[i]); | |
| 40 } | |
| 71 | 41 } |
| 42 } | |
| 43 | |
| 44 | |
| 45 static void Replace(std::string& text, const std::string& findText, const std::string& replaceText) | |
| 46 { | |
| 47 size_t pos = text.find(findText); | |
| 48 if (pos != std::string::npos) | |
| 49 { | |
| 50 text = text.replace(pos, findText.size(), replaceText); | |
| 51 } | |
| 52 } | |
| 53 | |
| 54 | |
| 55 static void StripLeadingAndTrailingSlashes(std::string& text) | |
| 56 { | |
| 57 if (text.size() > 1 && text[0] == '/') | |
| 58 { | |
| 59 text = text.substr(1, text.size() -1); | |
| 60 } | |
| 61 if (text.size() > 1 && text[text.size() - 1] == '/') | |
| 62 { | |
| 63 text = text.substr(0, text.size() -1); | |
| 64 } | |
| 65 } | |
| 66 | |
| 67 | |
| 68 PermissionParser::PermissionParser(const std::string& dicomWebRoot, const std::string& oe2Root) : | |
| 69 dicomWebRoot_(dicomWebRoot), | |
| 70 oe2Root_(oe2Root) | |
| 71 { | |
| 72 } | |
| 73 | |
|
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74 void PermissionParser::Add(const Json::Value& configuration, const IAuthorizationParser* authorizationParser) |
| 71 | 75 { |
| 76 if (configuration.type() != Json::arrayValue) | |
| 77 { | |
| 78 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadParameterType, "Permissions should be an array."); | |
| 79 } | |
| 80 | |
| 81 for (Json::ArrayIndex i = 0; i < configuration.size(); ++i) | |
| 82 { | |
| 83 const Json::Value& permission = configuration[i]; | |
| 84 if (permission.type() != Json::arrayValue || permission.size() < 3) | |
| 85 { | |
| 86 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadParameterType, "Permissions elements should be an array of min size 3."); | |
| 87 } | |
| 88 | |
|
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89 if (permission[1].asString() == "SINGLE_RESOURCE_PATTERNS") |
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90 { |
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91 std::vector<boost::regex> singleResourcePatterns; |
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92 authorizationParser->GetSingleResourcePatterns(singleResourcePatterns); |
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93 |
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94 for (std::vector<boost::regex>::const_iterator it = singleResourcePatterns.begin(); it != singleResourcePatterns.end(); ++it) |
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95 { |
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96 Add(permission[0].asString(), // 0 = HTTP method |
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97 it->str(), // 1 = pattern |
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98 permission[2].asString() // 2 = list of | separated permissions (no space) |
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99 // 3 = optional comment |
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100 ); |
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101 } |
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102 } |
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103 else |
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104 { |
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105 Add(permission[0].asString(), // 0 = HTTP method |
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106 permission[1].asString(), // 1 = pattern |
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107 permission[2].asString() // 2 = list of | separated permissions (no space) |
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108 // 3 = optional comment |
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109 ); |
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110 } |
| 71 | 111 } |
| 112 | |
| 113 } | |
| 114 | |
| 115 void PermissionParser::Add(const std::string& method, | |
| 116 const std::string& patternRegex, | |
| 117 const std::string& permission) | |
| 118 { | |
| 119 std::string lowerCaseMethod; | |
| 120 Orthanc::Toolbox::ToLowerCase(lowerCaseMethod, method); | |
| 121 OrthancPluginHttpMethod parsedMethod = OrthancPluginHttpMethod_Get; | |
| 122 | |
| 123 if (lowerCaseMethod == "post") | |
| 124 { | |
| 125 parsedMethod = OrthancPluginHttpMethod_Post; | |
| 126 } | |
| 127 else if (lowerCaseMethod == "put") | |
| 128 { | |
| 129 parsedMethod = OrthancPluginHttpMethod_Put; | |
| 130 } | |
| 131 else if (lowerCaseMethod == "delete") | |
| 132 { | |
| 133 parsedMethod = OrthancPluginHttpMethod_Delete; | |
| 134 } | |
| 135 else if (lowerCaseMethod == "get") | |
| 136 { | |
| 137 parsedMethod = OrthancPluginHttpMethod_Get; | |
| 138 } | |
| 139 else | |
| 140 { | |
| 141 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange, std::string("Invalid HTTP method ") + method); | |
| 142 } | |
| 143 | |
| 144 std::string regex = patternRegex; | |
| 145 std::string strippedDicomWebRoot = dicomWebRoot_; | |
| 146 | |
| 147 StripLeadingAndTrailingSlashes(strippedDicomWebRoot); | |
| 148 Replace(regex, "DICOM_WEB_ROOT", strippedDicomWebRoot); | |
| 149 | |
| 150 LOG(WARNING) << "Authorization plugin: adding a new permission pattern: " << lowerCaseMethod << " " << regex << " - " << permission; | |
| 151 | |
| 152 permissionsPattern_.push_back(PermissionPattern(parsedMethod, regex, permission)); | |
| 153 } | |
| 154 | |
| 155 bool PermissionParser::Parse(std::set<std::string>& permissions, | |
| 156 std::string& matchedPattern, | |
| 157 const OrthancPluginHttpMethod& method, | |
| 158 const std::string& uri) const | |
| 159 { | |
| 160 // The mutex below should not be necessary, but we prefer to | |
| 161 // ensure thread safety in boost::regex | |
| 162 boost::mutex::scoped_lock lock(mutex_); | |
| 163 | |
| 164 | |
| 165 for (std::list<PermissionPattern>::const_iterator it = permissionsPattern_.begin(); | |
| 166 it != permissionsPattern_.end(); ++it) | |
| 167 { | |
| 168 if (method == it->method) | |
| 169 { | |
| 170 boost::smatch what; | |
| 171 if (boost::regex_match(uri, what, it->pattern)) | |
| 172 { | |
| 173 matchedPattern = it->pattern.expression(); | |
| 174 permissions = it->permissions; | |
| 175 return true; | |
| 176 } | |
| 177 } | |
| 178 } | |
| 179 | |
| 180 return false; | |
| 181 } | |
| 182 } |