signature.cpp
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2013-2017 Regents of the University of California.
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 
22 #include "signature.hpp"
23 
24 namespace ndn {
25 
26 BOOST_CONCEPT_ASSERT((boost::EqualityComparable<Signature>));
27 static_assert(std::is_base_of<tlv::Error, Signature::Error>::value,
28  "Signature::Error must inherit from tlv::Error");
29 
30 Signature::Signature(const Block& info, const Block& value)
31  : m_info(info)
32  , m_value(value)
33 {
34 }
35 
36 
37 Signature::Signature(const SignatureInfo& info, const Block& value)
38  : m_info(info)
39  , m_value(value)
40 {
41 }
42 
45 {
46  if (!*this) {
47  BOOST_THROW_EXCEPTION(Error("Signature is invalid"));
48  }
49  return static_cast<tlv::SignatureTypeValue>(m_info.getSignatureType());
50 }
51 
52 void
54 {
55  m_info = SignatureInfo(info);
56 }
57 
58 void
60 {
61  if (value.type() != tlv::SignatureValue) {
62  BOOST_THROW_EXCEPTION(Error("Expecting SignatureValue, but TLV-TYPE is " + to_string(value.type())));
63  }
64  m_value = value;
65 }
66 
67 bool
68 operator==(const Signature& lhs, const Signature& rhs)
69 {
70  return lhs.getSignatureInfo() == rhs.getSignatureInfo() && lhs.getValue() == rhs.getValue();
71 }
72 
73 } // namespace ndn
Copyright (c) 2013-2017 Regents of the University of California.
Definition: common.hpp:66
Signature()=default
Represents a SignatureInfo TLV element.
void setInfo(const Block &info)
Decode SignatureInfo from wire format.
Definition: signature.cpp:53
Represents a TLV element of NDN packet format.
Definition: block.hpp:42
const Block & getValue() const
Get SignatureValue.
Definition: signature.hpp:99
const SignatureInfo & getSignatureInfo() const
Get SignatureInfo.
Definition: signature.hpp:69
void setValue(const Block &value)
Set SignatureValue.
Definition: signature.cpp:59
tlv::SignatureTypeValue getType() const
Get SignatureType.
Definition: signature.cpp:44
uint32_t type() const
Get TLV-TYPE.
Definition: block.hpp:235
bool operator==(const Data &lhs, const Data &rhs)
Definition: data.cpp:328
std::string to_string(const V &v)
Definition: backports.hpp:107
int32_t getSignatureType() const
Get SignatureType.
SignatureInfo m_info
Definition: signature.hpp:154
Holds SignatureInfo and SignatureValue in a Data packet.
Definition: signature.hpp:37