Zhiyi Zhang | f4bb5c7 | 2015-08-19 19:02:51 -0700 | [diff] [blame] | 1 | /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
| 2 | /** |
Yingdi Yu | 6ee2d36 | 2015-07-16 21:48:05 -0700 | [diff] [blame^] | 3 | * Copyright (c) 2013-2017 Regents of the University of California. |
Zhiyi Zhang | f4bb5c7 | 2015-08-19 19:02:51 -0700 | [diff] [blame] | 4 | * |
| 5 | * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions). |
| 6 | * |
| 7 | * ndn-cxx library is free software: you can redistribute it and/or modify it under the |
| 8 | * terms of the GNU Lesser General Public License as published by the Free Software |
| 9 | * Foundation, either version 3 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY |
| 12 | * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A |
| 13 | * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. |
| 14 | * |
| 15 | * You should have received copies of the GNU General Public License and GNU Lesser |
| 16 | * General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see |
| 17 | * <http://www.gnu.org/licenses/>. |
| 18 | * |
| 19 | * See AUTHORS.md for complete list of ndn-cxx authors and contributors. |
| 20 | * |
| 21 | * @author Zhiyi Zhang <dreamerbarrychang@gmail.com> |
| 22 | * @author Yingdi Yu <http://irl.cs.ucla.edu/~yingdi/> |
| 23 | */ |
| 24 | |
| 25 | #include "certificate.hpp" |
| 26 | #include "../../encoding/block-helpers.hpp" |
| 27 | |
| 28 | namespace ndn { |
| 29 | namespace security { |
| 30 | namespace v2 { |
| 31 | |
| 32 | BOOST_CONCEPT_ASSERT((WireEncodable<Certificate>)); |
| 33 | BOOST_CONCEPT_ASSERT((WireDecodable<Certificate>)); |
| 34 | |
| 35 | // /<NameSpace>/KEY/[KeyId]/[IssuerId]/[Version] |
| 36 | |
| 37 | const ssize_t Certificate::VERSION_OFFSET = -1; |
| 38 | const ssize_t Certificate::ISSUER_ID_OFFSET = -2; |
| 39 | const ssize_t Certificate::KEY_ID_OFFSET = -3; |
| 40 | const ssize_t Certificate::KEY_COMPONENT_OFFSET = -4; |
| 41 | const size_t Certificate::MIN_CERT_NAME_LENGTH = 4; |
| 42 | const size_t Certificate::MIN_KEY_NAME_LENGTH = 2; |
| 43 | const name::Component Certificate::KEY_COMPONENT("KEY"); |
| 44 | |
| 45 | Certificate::Certificate() |
| 46 | { |
| 47 | setContentType(tlv::ContentTypeValue::ContentType_Key); |
| 48 | } |
| 49 | |
| 50 | Certificate::Certificate(Data&& data) |
| 51 | : Data(data) |
| 52 | { |
| 53 | if (!isValidName(getName())) { |
| 54 | BOOST_THROW_EXCEPTION(Data::Error("Name does not follow the naming convention for certificate")); |
| 55 | } |
| 56 | if (getContentType() != tlv::ContentTypeValue::ContentType_Key) { |
| 57 | BOOST_THROW_EXCEPTION(Data::Error("ContentType is not KEY")); |
| 58 | } |
| 59 | if (getFreshnessPeriod() < time::seconds::zero()) { |
| 60 | BOOST_THROW_EXCEPTION(Data::Error("FreshnessPeriod is not set")); |
| 61 | } |
| 62 | if (getContent().value_size() == 0) { |
| 63 | BOOST_THROW_EXCEPTION(Data::Error("Content is empty")); |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | Certificate::Certificate(const Data& data) |
| 68 | : Certificate(Data(data)) |
| 69 | { |
| 70 | } |
| 71 | |
| 72 | Certificate::Certificate(const Block& block) |
| 73 | : Certificate(Data(block)) |
| 74 | { |
| 75 | } |
| 76 | |
| 77 | Name |
| 78 | Certificate::getKeyName() const |
| 79 | { |
| 80 | return getName().getPrefix(KEY_ID_OFFSET + 1); |
| 81 | } |
| 82 | |
| 83 | Name |
| 84 | Certificate::getIdentity() const |
| 85 | { |
| 86 | return getName().getPrefix(KEY_COMPONENT_OFFSET); |
| 87 | } |
| 88 | |
| 89 | name::Component |
| 90 | Certificate::getKeyId() const |
| 91 | { |
| 92 | return getName().at(KEY_ID_OFFSET); |
| 93 | } |
| 94 | |
| 95 | name::Component |
| 96 | Certificate::getIssuerId() const |
| 97 | { |
| 98 | return getName().at(ISSUER_ID_OFFSET); |
| 99 | } |
| 100 | |
| 101 | const Buffer |
| 102 | Certificate::getPublicKey() const |
| 103 | { |
| 104 | if (getContent().value_size() == 0) |
| 105 | BOOST_THROW_EXCEPTION(Data::Error("Content is empty")); |
| 106 | return Buffer(getContent().value(), getContent().value_size()); |
| 107 | } |
| 108 | |
| 109 | ValidityPeriod |
| 110 | Certificate::getValidityPeriod() const |
| 111 | { |
| 112 | return getSignature().getSignatureInfo().getValidityPeriod(); |
| 113 | } |
| 114 | |
| 115 | bool |
| 116 | Certificate::isValid(const time::system_clock::TimePoint& ts) const |
| 117 | { |
| 118 | return getSignature().getSignatureInfo().getValidityPeriod().isValid(ts); |
| 119 | } |
| 120 | |
| 121 | const Block& |
| 122 | Certificate::getExtension(uint32_t type) const |
| 123 | { |
| 124 | return getSignature().getSignatureInfo().getTypeSpecificTlv(type); |
| 125 | } |
| 126 | |
| 127 | bool |
| 128 | Certificate::isValidName(const Name& certName) |
| 129 | { |
| 130 | // /<NameSpace>/KEY/[KeyId]/[IssuerId]/[Version] |
| 131 | return (certName.size() >= Certificate::MIN_CERT_NAME_LENGTH && |
| 132 | certName.get(Certificate::KEY_COMPONENT_OFFSET) == Certificate::KEY_COMPONENT); |
| 133 | } |
| 134 | |
Yingdi Yu | 6ee2d36 | 2015-07-16 21:48:05 -0700 | [diff] [blame^] | 135 | Name |
| 136 | extractIdentityFromCertName(const Name& certName) |
| 137 | { |
| 138 | if (!Certificate::isValidName(certName)) { |
| 139 | BOOST_THROW_EXCEPTION(std::invalid_argument("Certificate name `" + certName.toUri() + "` " |
| 140 | "does not follow the naming conventions")); |
| 141 | } |
| 142 | |
| 143 | return certName.getPrefix(Certificate::KEY_COMPONENT_OFFSET); // trim everything after and including "KEY" |
| 144 | } |
| 145 | |
| 146 | Name |
| 147 | extractKeyNameFromCertName(const Name& certName) |
| 148 | { |
| 149 | if (!Certificate::isValidName(certName)) { |
| 150 | BOOST_THROW_EXCEPTION(std::invalid_argument("Certificate name `" + certName.toUri() + "` " |
| 151 | "does not follow the naming conventions")); |
| 152 | } |
| 153 | |
| 154 | return certName.getPrefix(Certificate::KEY_ID_OFFSET + 1); // trim everything after key id |
| 155 | } |
| 156 | |
Zhiyi Zhang | f4bb5c7 | 2015-08-19 19:02:51 -0700 | [diff] [blame] | 157 | } // namespace v2 |
| 158 | } // namespace security |
| 159 | } // namespace ndn |