link: add Link abstraction
Change-Id: I1e4bafe8559ef87135de6cb6f209fc94dfa231a3
Refs: #2587
diff --git a/src/data.hpp b/src/data.hpp
index 078938a..b12061b 100644
--- a/src/data.hpp
+++ b/src/data.hpp
@@ -310,7 +310,7 @@
bool
operator!=(const Data& other) const;
-private:
+protected:
/**
* @brief Clear the wire encoding.
*/
diff --git a/src/encoding/tlv.hpp b/src/encoding/tlv.hpp
index 01a8679..da7b8ea 100644
--- a/src/encoding/tlv.hpp
+++ b/src/encoding/tlv.hpp
@@ -84,6 +84,9 @@
SignatureType = 27,
KeyLocator = 28,
KeyDigest = 29,
+ LinkPreference = 30,
+ LinkDelegation = 31,
+ SelectedDelegation = 32,
AppPrivateBlock1 = 128,
AppPrivateBlock2 = 32767
diff --git a/src/link.cpp b/src/link.cpp
new file mode 100644
index 0000000..07ac0d9
--- /dev/null
+++ b/src/link.cpp
@@ -0,0 +1,199 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2015 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+#include "link.hpp"
+#include "interest.hpp"
+#include "encoding/block-helpers.hpp"
+#include "util/crypto.hpp"
+#include "security/key-chain.hpp"
+#include "util/concepts.hpp"
+
+#include <algorithm>
+
+#include <boost/range/adaptors.hpp>
+
+namespace ndn {
+
+BOOST_CONCEPT_ASSERT((boost::EqualityComparable<Link>));
+BOOST_CONCEPT_ASSERT((WireEncodable<Link>));
+BOOST_CONCEPT_ASSERT((WireDecodable<Link>));
+static_assert(std::is_base_of<Data::Error, Link::Error>::value,
+ "Link::Error should inherit from Data::Error");
+
+Link::Link(const Block& block)
+{
+ wireDecode(block);
+}
+
+Link::Link(const Name& name)
+ : Data(name)
+{
+}
+
+Link::Link(const Name& name, std::initializer_list<std::pair<uint32_t, Name>> links)
+ : Data(name)
+{
+ m_delegations.insert(links);
+ encodeContent();
+}
+
+void
+Link::addDelegation(uint32_t preference, const Name& name)
+{
+ this->removeDelegationNoEncode(name);
+ m_delegations.insert({preference, name});
+ encodeContent();
+}
+
+bool
+Link::removeDelegation(const Name& name)
+{
+ bool hasRemovedDelegation = this->removeDelegationNoEncode(name);
+ if (hasRemovedDelegation) {
+ encodeContent();
+ }
+ return hasRemovedDelegation;
+}
+
+const Link::DelegationSet&
+Link::getDelegations() const
+{
+ return m_delegations;
+}
+
+template<encoding::Tag TAG>
+size_t
+Link::encodeContent(EncodingImpl<TAG>& encoder) const
+{
+ // LinkContent ::= CONTENT-TYPE TLV-LENGTH
+ // Delegation+
+
+ // Delegation ::= LINK-DELEGATION-TYPE TLV-LENGTH
+ // Preference
+ // Name
+
+ // Preference ::= LINK-PREFERENCE-TYPE TLV-LENGTH
+ // nonNegativeInteger
+
+ size_t totalLength = 0;
+ for (const auto& delegation : m_delegations | boost::adaptors::reversed) {
+ size_t delegationLength = 0;
+ delegationLength += std::get<1>(delegation).wireEncode(encoder);
+ delegationLength += prependNonNegativeIntegerBlock(encoder, tlv::LinkPreference,
+ std::get<0>(delegation));
+ delegationLength += encoder.prependVarNumber(delegationLength);
+ delegationLength += encoder.prependVarNumber(tlv::LinkDelegation);
+ totalLength += delegationLength;
+ }
+ totalLength += encoder.prependVarNumber(totalLength);
+ totalLength += encoder.prependVarNumber(tlv::Content);
+ return totalLength;
+}
+
+template size_t
+Link::encodeContent<encoding::EncoderTag>(EncodingImpl<encoding::EncoderTag>&) const;
+
+template size_t
+Link::encodeContent<encoding::EstimatorTag>(EncodingImpl<encoding::EstimatorTag>&) const;
+
+void
+Link::encodeContent()
+{
+ onChanged();
+
+ EncodingEstimator estimator;
+ size_t estimatedSize = encodeContent(estimator);
+
+ EncodingBuffer buffer(estimatedSize, 0);
+ encodeContent(buffer);
+
+ setContentType(tlv::ContentType_Link);
+ setContent(buffer.block());
+}
+
+void
+Link::decodeContent()
+{
+ // LinkContent ::= CONTENT-TYPE TLV-LENGTH
+ // Delegation+
+
+ // Delegation ::= LINK-DELEGATION-TYPE TLV-LENGTH
+ // Preference
+ // Name
+
+ // Preference ::= LINK-PREFERENCE-TYPE TLV-LENGTH
+ // nonNegativeInteger
+
+ if (getContentType() != tlv::ContentType_Link)
+ {
+ throw Error("Expected Content Type Link");
+ }
+
+ const Block& content = getContent();
+ content.parse();
+
+ for (auto& delegation : content.elements()) {
+ delegation.parse();
+ Block::element_const_iterator val = delegation.elements_begin();
+ if (val == delegation.elements_end()) {
+ throw Error("Unexpected Link Encoding");
+ }
+ uint32_t preference;
+ try {
+ preference = static_cast<uint32_t>(readNonNegativeInteger(*val));
+ }
+ catch (tlv::Error&) {
+ throw Error("Missing preference field in Link Encoding");
+ }
+ ++val;
+ if (val == delegation.elements_end()) {
+ throw Error("Missing name field in Link Encoding");
+ }
+ Name name(*val);
+ m_delegations.insert({preference, name});
+ }
+}
+
+void
+Link::wireDecode(const Block& wire)
+{
+ Data::wireDecode(wire);
+ decodeContent();
+}
+
+bool
+Link::removeDelegationNoEncode(const Name& name)
+{
+ bool hasRemoved = false;
+ auto i = m_delegations.begin();
+ while (i != m_delegations.end()) {
+ if (i->second == name) {
+ hasRemoved = true;
+ i = m_delegations.erase(i);
+ }
+ else {
+ ++i;
+ }
+ }
+ return hasRemoved;
+}
+
+} // namespace ndn
diff --git a/src/link.hpp b/src/link.hpp
new file mode 100644
index 0000000..3ccb7a3
--- /dev/null
+++ b/src/link.hpp
@@ -0,0 +1,161 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2015 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+#ifndef NDN_LINK_HPP
+#define NDN_LINK_HPP
+
+#include "data.hpp"
+#include <set>
+
+namespace ndn {
+
+const size_t INVALID_SELECTED_DELEGATION_INDEX = std::numeric_limits<size_t>::max();
+
+/** @brief represents a Link instance
+ */
+class Link : public Data
+{
+public:
+ class Error : public Data::Error
+ {
+ public:
+ explicit
+ Error(const std::string& what)
+ : Data::Error(what)
+ {
+ }
+ };
+
+ // The ordering is based on the preference number and needs to be preserved
+ typedef std::set<std::pair<uint32_t, Name>> DelegationSet;
+
+ /**
+ * @brief Create an empty Link object
+ *
+ * Note that in certain contexts that use Link::shared_from_this(), Link must be
+ * created using `make_shared`:
+ *
+ * shared_ptr<Link> linkObject = make_shared<Link>();
+ *
+ * Otherwise, Link::shared_from_this() will throw std::bad_weak_ptr.
+ */
+ Link() = default;
+
+ /**
+ * @brief Create a Link object from a Block
+ *
+ * Note that in certain contexts that use Link::shared_from_this(), Link must be
+ * created using `make_shared`:
+ *
+ * shared_ptr<Link> linkObject = make_shared<Link>(block);
+ *
+ * Otherwise, Link::shared_from_this() will throw std::bad_weak_ptr.
+ */
+ explicit
+ Link(const Block& block);
+
+ /**
+ * @brief Create a Link object with the given name
+ *
+ * @param name A reference to the name of the redirected namespace
+ *
+ * Note that in certain contexts that use Link::shared_from_this(), Link must be
+ * created using `make_shared`:
+ *
+ * shared_ptr<Link> link = make_shared<Link>(name);
+ *
+ * Otherwise, Link::shared_from_this() will throw std::bad_weak_ptr.
+ */
+ explicit
+ Link(const Name& name);
+
+ /**
+ * @brief Create a Link object with the given name and pairs of <Preference, Name>
+ *
+ * @param name A reference to the name of the redirected namespace
+ * @param links A reference to the list of pairs of the redirected namespace
+ * along with its priority
+ *
+ * Note that in certain contexts that use Link::shared_from_this(), Link must be
+ * created using `make_shared`:
+ *
+ * shared_ptr<Link> link = make_shared<Link>(name, links);
+ *
+ * Otherwise, Link::shared_from_this() will throw std::bad_weak_ptr.
+ */
+ Link(const Name& name, std::initializer_list<std::pair<uint32_t, Name>> links);
+
+ /**
+ * @brief Add a delegation in the format of <Name, Preference>
+ * @param preference The preference of the delegation to be added
+ * @param name The name of the delegation to be added
+ * @note If a delegation with @p name exists, its preference will be updated
+ */
+ void
+ addDelegation(uint32_t preference, const Name& name);
+
+ /**
+ * @brief Remove a delegation whose name is @p name
+ * @param name The name of the delegation to be removed
+ * @return true if delegation is removed, otherwise false
+ */
+ bool
+ removeDelegation(const Name& name);
+
+ /**
+ * @brief Get the pairs of <Name, Preference>
+ * @return a set of delegations
+ */
+ const DelegationSet&
+ getDelegations() const;
+
+ /**
+ * @brief Decode from the wire format
+ */
+ void
+ wireDecode(const Block& wire);
+
+protected:
+ /** \brief prepend Link object as a Content block to the encoder
+ *
+ * The outermost Content element is not part of Link object structure.
+ */
+ template<encoding::Tag TAG>
+ size_t
+ encodeContent(EncodingImpl<TAG>& encoder) const;
+
+ void
+ encodeContent();
+
+ void
+ decodeContent();
+
+private:
+ bool
+ removeDelegationNoEncode(const Name& name);
+
+private:
+ DelegationSet m_delegations;
+};
+
+} // namespace ndn
+
+#endif // NDN_LINK_HPP
diff --git a/tests/unit-tests/link.t.cpp b/tests/unit-tests/link.t.cpp
new file mode 100644
index 0000000..d771b7b
--- /dev/null
+++ b/tests/unit-tests/link.t.cpp
@@ -0,0 +1,400 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/**
+ * Copyright (c) 2013-2015 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ */
+
+#include "link.hpp"
+#include "security/key-chain.hpp"
+#include "security/cryptopp.hpp"
+#include "encoding/buffer-stream.hpp"
+
+#include "boost-test.hpp"
+
+namespace ndn {
+namespace tests {
+
+const uint8_t LinkTest[] = {
+0x06, 0xda, // Data
+ 0x07, 0x14, // Name
+ 0x08, 0x05,
+ 0x6c, 0x6f, 0x63, 0x61, 0x6c,
+ 0x08, 0x03,
+ 0x6e, 0x64, 0x6e,
+ 0x08, 0x06,
+ 0x70, 0x72, 0x65, 0x66, 0x69, 0x78,
+ 0x14, 0x07, // MetaInfo
+ 0x18, 0x01, // ContentType
+ 0x01,
+ 0x19, 0x02, // FreshnessPeriod
+ 0x27, 0x10,
+ 0x15, 0x1a, // Content
+ 0x1f, 0x0c, // LinkDelegation
+ 0x1e, 0x01, // LinkPreference
+ 0x0a,
+ 0x07, 0x07, // Name
+ 0x08, 0x05,
+ 0x6c, 0x6f, 0x63, 0x61, 0x6c,
+ 0x1f, 0x0a, // LinkDelegation
+ 0x1e, 0x01, // LinkPreference
+ 0x14,
+ 0x07, 0x05, // Name
+ 0x08, 0x03,
+ 0x6e, 0x64, 0x6e,
+ 0x16, 0x1b, // SignatureInfo
+ 0x1b, 0x01, // SignatureType
+ 0x01,
+ 0x1c, 0x16, // KeyLocator
+ 0x07, 0x14, // Name
+ 0x08, 0x04,
+ 0x74, 0x65, 0x73, 0x74,
+ 0x08, 0x03,
+ 0x6b, 0x65, 0x79,
+ 0x08, 0x07,
+ 0x6c, 0x6f, 0x63, 0x61, 0x74, 0x6f, 0x72,
+ 0x17, 0x80, // SignatureValue
+ 0x2f, 0xd6, 0xf1, 0x6e, 0x80, 0x6f, 0x10, 0xbe, 0xb1, 0x6f, 0x3e, 0x31, 0xec,
+ 0xe3, 0xb9, 0xea, 0x83, 0x30, 0x40, 0x03, 0xfc, 0xa0, 0x13, 0xd9, 0xb3, 0xc6,
+ 0x25, 0x16, 0x2d, 0xa6, 0x58, 0x41, 0x69, 0x62, 0x56, 0xd8, 0xb3, 0x6a, 0x38,
+ 0x76, 0x56, 0xea, 0x61, 0xb2, 0x32, 0x70, 0x1c, 0xb6, 0x4d, 0x10, 0x1d, 0xdc,
+ 0x92, 0x8e, 0x52, 0xa5, 0x8a, 0x1d, 0xd9, 0x96, 0x5e, 0xc0, 0x62, 0x0b, 0xcf,
+ 0x3a, 0x9d, 0x7f, 0xca, 0xbe, 0xa1, 0x41, 0x71, 0x85, 0x7a, 0x8b, 0x5d, 0xa9,
+ 0x64, 0xd6, 0x66, 0xb4, 0xe9, 0x8d, 0x0c, 0x28, 0x43, 0xee, 0xa6, 0x64, 0xe8,
+ 0x55, 0xf6, 0x1c, 0x19, 0x0b, 0xef, 0x99, 0x25, 0x1e, 0xdc, 0x78, 0xb3, 0xa7,
+ 0xaa, 0x0d, 0x14, 0x58, 0x30, 0xe5, 0x37, 0x6a, 0x6d, 0xdb, 0x56, 0xac, 0xa3,
+ 0xfc, 0x90, 0x7a, 0xb8, 0x66, 0x9c, 0x0e, 0xf6, 0xb7, 0x64, 0xd1
+};
+
+const uint8_t IncorrectContentTypeLink[] = {
+0x06, 0xda, // Data
+ 0x07, 0x14, // Name
+ 0x08, 0x05,
+ 0x6c, 0x6f, 0x63, 0x61, 0x6c,
+ 0x08, 0x03,
+ 0x6e, 0x64, 0x6e,
+ 0x08, 0x06,
+ 0x70, 0x72, 0x65, 0x66, 0x69, 0x78,
+ 0x14, 0x07, // MetaInfo
+ 0x18, 0x01, // ContentType
+ 0x02,
+ 0x19, 0x02, // FreshnessPeriod
+ 0x27, 0x10,
+ 0x15, 0x1a, // Content
+ 0x1f, 0x0c, // LinkDelegation
+ 0x1e, 0x01, // LinkPreference
+ 0x0a,
+ 0x07, 0x07, // Name
+ 0x08, 0x05,
+ 0x6c, 0x6f, 0x63, 0x61, 0x6c,
+ 0x1f, 0x0a, // LinkDelegation
+ 0x1e, 0x01, // LinkPreference
+ 0x14,
+ 0x07, 0x05, // Name
+ 0x08, 0x03,
+ 0x6e, 0x64, 0x6e,
+ 0x16, 0x1b, // SignatureInfo
+ 0x1b, 0x01, // SignatureType
+ 0x01,
+ 0x1c, 0x16, // KeyLocator
+ 0x07, 0x14, // Name
+ 0x08, 0x04,
+ 0x74, 0x65, 0x73, 0x74,
+ 0x08, 0x03,
+ 0x6b, 0x65, 0x79,
+ 0x08, 0x07,
+ 0x6c, 0x6f, 0x63, 0x61, 0x74, 0x6f, 0x72,
+ 0x17, 0x80, // SignatureValue
+ 0x2f, 0xd6, 0xf1, 0x6e, 0x80, 0x6f, 0x10, 0xbe, 0xb1, 0x6f, 0x3e, 0x31, 0xec,
+ 0xe3, 0xb9, 0xea, 0x83, 0x30, 0x40, 0x03, 0xfc, 0xa0, 0x13, 0xd9, 0xb3, 0xc6,
+ 0x25, 0x16, 0x2d, 0xa6, 0x58, 0x41, 0x69, 0x62, 0x56, 0xd8, 0xb3, 0x6a, 0x38,
+ 0x76, 0x56, 0xea, 0x61, 0xb2, 0x32, 0x70, 0x1c, 0xb6, 0x4d, 0x10, 0x1d, 0xdc,
+ 0x92, 0x8e, 0x52, 0xa5, 0x8a, 0x1d, 0xd9, 0x96, 0x5e, 0xc0, 0x62, 0x0b, 0xcf,
+ 0x3a, 0x9d, 0x7f, 0xca, 0xbe, 0xa1, 0x41, 0x71, 0x85, 0x7a, 0x8b, 0x5d, 0xa9,
+ 0x64, 0xd6, 0x66, 0xb4, 0xe9, 0x8d, 0x0c, 0x28, 0x43, 0xee, 0xa6, 0x64, 0xe8,
+ 0x55, 0xf6, 0x1c, 0x19, 0x0b, 0xef, 0x99, 0x25, 0x1e, 0xdc, 0x78, 0xb3, 0xa7,
+ 0xaa, 0x0d, 0x14, 0x58, 0x30, 0xe5, 0x37, 0x6a, 0x6d, 0xdb, 0x56, 0xac, 0xa3,
+ 0xfc, 0x90, 0x7a, 0xb8, 0x66, 0x9c, 0x0e, 0xf6, 0xb7, 0x64, 0xd1
+};
+
+const uint8_t MissingPreferenceLink[] = {
+0x06, 0xd7, // Data
+ 0x07, 0x14, // Name
+ 0x08, 0x05,
+ 0x6c, 0x6f, 0x63, 0x61, 0x6c,
+ 0x08, 0x03,
+ 0x6e, 0x64, 0x6e,
+ 0x08, 0x06,
+ 0x70, 0x72, 0x65, 0x66, 0x69, 0x78,
+ 0x14, 0x07, // MetaInfo
+ 0x18, 0x01, // ContentType
+ 0x01,
+ 0x19, 0x02, // FreshnessPeriod
+ 0x27, 0x10,
+ 0x15, 0x17, // Content
+ 0x1f, 0x09, // LinkDelegation
+ 0x07, 0x07, // Name
+ 0x08, 0x05,
+ 0x6c, 0x6f, 0x63, 0x61, 0x6c,
+ 0x1f, 0x0a, // LinkDelegation
+ 0x1e, 0x01, // LinkPreference
+ 0x14,
+ 0x07, 0x05, // Name
+ 0x08, 0x03,
+ 0x6e, 0x64, 0x6e,
+ 0x16, 0x1b, // SignatureInfo
+ 0x1b, 0x01, // SignatureType
+ 0x01,
+ 0x1c, 0x16, // KeyLocator
+ 0x07, 0x14, // Name
+ 0x08, 0x04,
+ 0x74, 0x65, 0x73, 0x74,
+ 0x08, 0x03,
+ 0x6b, 0x65, 0x79,
+ 0x08, 0x07,
+ 0x6c, 0x6f, 0x63, 0x61, 0x74, 0x6f, 0x72,
+ 0x17, 0x80, // SignatureValue
+ 0x2f, 0xd6, 0xf1, 0x6e, 0x80, 0x6f, 0x10, 0xbe, 0xb1, 0x6f, 0x3e, 0x31, 0xec,
+ 0xe3, 0xb9, 0xea, 0x83, 0x30, 0x40, 0x03, 0xfc, 0xa0, 0x13, 0xd9, 0xb3, 0xc6,
+ 0x25, 0x16, 0x2d, 0xa6, 0x58, 0x41, 0x69, 0x62, 0x56, 0xd8, 0xb3, 0x6a, 0x38,
+ 0x76, 0x56, 0xea, 0x61, 0xb2, 0x32, 0x70, 0x1c, 0xb6, 0x4d, 0x10, 0x1d, 0xdc,
+ 0x92, 0x8e, 0x52, 0xa5, 0x8a, 0x1d, 0xd9, 0x96, 0x5e, 0xc0, 0x62, 0x0b, 0xcf,
+ 0x3a, 0x9d, 0x7f, 0xca, 0xbe, 0xa1, 0x41, 0x71, 0x85, 0x7a, 0x8b, 0x5d, 0xa9,
+ 0x64, 0xd6, 0x66, 0xb4, 0xe9, 0x8d, 0x0c, 0x28, 0x43, 0xee, 0xa6, 0x64, 0xe8,
+ 0x55, 0xf6, 0x1c, 0x19, 0x0b, 0xef, 0x99, 0x25, 0x1e, 0xdc, 0x78, 0xb3, 0xa7,
+ 0xaa, 0x0d, 0x14, 0x58, 0x30, 0xe5, 0x37, 0x6a, 0x6d, 0xdb, 0x56, 0xac, 0xa3,
+ 0xfc, 0x90, 0x7a, 0xb8, 0x66, 0x9c, 0x0e, 0xf6, 0xb7, 0x64, 0xd1
+};
+
+const uint8_t MissingNameLink[] = {
+0x06, 0xd1, // Data
+ 0x07, 0x14, // Name
+ 0x08, 0x05,
+ 0x6c, 0x6f, 0x63, 0x61, 0x6c,
+ 0x08, 0x03,
+ 0x6e, 0x64, 0x6e,
+ 0x08, 0x06,
+ 0x70, 0x72, 0x65, 0x66, 0x69, 0x78,
+ 0x14, 0x07, // MetaInfo
+ 0x18, 0x01, // ContentType
+ 0x01,
+ 0x19, 0x02, // FreshnessPeriod
+ 0x27, 0x10,
+ 0x15, 0x11, // Content
+ 0x1f, 0x03, // LinkDelegation
+ 0x1e, 0x01, // LinkPreference
+ 0x0a,
+ 0x1f, 0x0a, // LinkDelegation
+ 0x1e, 0x01, // LinkPreference
+ 0x14,
+ 0x07, 0x05, // Name
+ 0x08, 0x03,
+ 0x6e, 0x64, 0x6e,
+ 0x16, 0x1b, // SignatureInfo
+ 0x1b, 0x01, // SignatureType
+ 0x01,
+ 0x1c, 0x16, // KeyLocator
+ 0x07, 0x14, // Name
+ 0x08, 0x04,
+ 0x74, 0x65, 0x73, 0x74,
+ 0x08, 0x03,
+ 0x6b, 0x65, 0x79,
+ 0x08, 0x07,
+ 0x6c, 0x6f, 0x63, 0x61, 0x74, 0x6f, 0x72,
+ 0x17, 0x80, // SignatureValue
+ 0x2f, 0xd6, 0xf1, 0x6e, 0x80, 0x6f, 0x10, 0xbe, 0xb1, 0x6f, 0x3e, 0x31, 0xec,
+ 0xe3, 0xb9, 0xea, 0x83, 0x30, 0x40, 0x03, 0xfc, 0xa0, 0x13, 0xd9, 0xb3, 0xc6,
+ 0x25, 0x16, 0x2d, 0xa6, 0x58, 0x41, 0x69, 0x62, 0x56, 0xd8, 0xb3, 0x6a, 0x38,
+ 0x76, 0x56, 0xea, 0x61, 0xb2, 0x32, 0x70, 0x1c, 0xb6, 0x4d, 0x10, 0x1d, 0xdc,
+ 0x92, 0x8e, 0x52, 0xa5, 0x8a, 0x1d, 0xd9, 0x96, 0x5e, 0xc0, 0x62, 0x0b, 0xcf,
+ 0x3a, 0x9d, 0x7f, 0xca, 0xbe, 0xa1, 0x41, 0x71, 0x85, 0x7a, 0x8b, 0x5d, 0xa9,
+ 0x64, 0xd6, 0x66, 0xb4, 0xe9, 0x8d, 0x0c, 0x28, 0x43, 0xee, 0xa6, 0x64, 0xe8,
+ 0x55, 0xf6, 0x1c, 0x19, 0x0b, 0xef, 0x99, 0x25, 0x1e, 0xdc, 0x78, 0xb3, 0xa7,
+ 0xaa, 0x0d, 0x14, 0x58, 0x30, 0xe5, 0x37, 0x6a, 0x6d, 0xdb, 0x56, 0xac, 0xa3,
+ 0xfc, 0x90, 0x7a, 0xb8, 0x66, 0x9c, 0x0e, 0xf6, 0xb7, 0x64, 0xd1
+};
+
+BOOST_AUTO_TEST_SUITE(TestLink)
+
+BOOST_AUTO_TEST_CASE(PairParsingCheck)
+{
+ Link link("test", {{10, "/test1"}, {20, "/test2"}, {100, "/test3"}});
+ BOOST_CHECK_EQUAL(link.getDelegations().size(), static_cast<uint32_t>(3));
+}
+
+BOOST_AUTO_TEST_CASE(CheckInsertDelegation)
+{
+ Link link("test", {{10, "/test1"}, {20, "/test2"}, {100, "/test3"}});
+
+ link.addDelegation(30, Name("test4"));
+ Link::DelegationSet delegations = link.getDelegations();
+ int counter = 0;
+ for (auto i = delegations.begin(); i != delegations.end(); i++) {
+ counter++;
+ if (counter == 1)
+ {
+ BOOST_CHECK_EQUAL(std::get<0>(*i), 10);
+ BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test1"));
+ }
+ if (counter == 2)
+ {
+ BOOST_CHECK_EQUAL(std::get<0>(*i), 20);
+ BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test2"));
+ }
+ if (counter == 3)
+ {
+ BOOST_CHECK_EQUAL(std::get<0>(*i), 30);
+ BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test4"));
+ }
+ if (counter == 4)
+ {
+ BOOST_CHECK_EQUAL(std::get<0>(*i), 100);
+ BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test3"));
+ }
+ }
+}
+
+BOOST_AUTO_TEST_CASE(CheckRemoveDelegation)
+{
+ Link link("test", {{10, "/test1"}, {20, "/test2"}, {100, "/test3"}});
+
+ link.removeDelegation(Name("test2"));
+ Link::DelegationSet delegations = link.getDelegations();
+ int counter = 0;
+ for (auto i = delegations.begin(); i != delegations.end(); i++) {
+ counter++;
+ if (counter == 1)
+ {
+ BOOST_CHECK_EQUAL(std::get<0>(*i), 10);
+ BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test1"));
+ }
+ if (counter == 2)
+ {
+ BOOST_CHECK_EQUAL(std::get<0>(*i), 100);
+ BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test3"));
+ }
+ }
+}
+
+BOOST_AUTO_TEST_CASE(CheckEncodeDecode)
+{
+ Link link1("test", {{10, "/test1"}, {20, "/test2"}, {100, "/test3"}});
+ KeyChain keyChain;
+ keyChain.sign(link1);
+ Block wire = link1.wireEncode();
+
+ Link link2;
+ link2.wireDecode(wire);
+ Name name = link2.getName();
+ BOOST_CHECK_EQUAL(Name("test"), name);
+
+ Link::DelegationSet delegations;
+ delegations = link2.getDelegations();
+ int counter = 0;
+ for (auto i = delegations.begin(); i != delegations.end(); i++) {
+ counter++;
+ if (counter == 1)
+ {
+ BOOST_CHECK_EQUAL(std::get<0>(*i), 10);
+ BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test1"));
+ }
+ if (counter == 2)
+ {
+ BOOST_CHECK_EQUAL(std::get<0>(*i), 20);
+ BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test2"));
+ }
+ if (counter == 3)
+ {
+ BOOST_CHECK_EQUAL(std::get<0>(*i), 100);
+ BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test3"));
+ }
+ }
+
+ Link link3(wire);
+ name = link3.getName();
+ BOOST_CHECK_EQUAL(Name("test"), name);
+
+ delegations = link3.getDelegations();
+ counter = 0;
+ for (auto i = delegations.begin(); i != delegations.end(); i++) {
+ counter++;
+ if (counter == 1)
+ {
+ BOOST_CHECK_EQUAL(std::get<0>(*i), 10);
+ BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test1"));
+ }
+ if (counter == 2)
+ {
+ BOOST_CHECK_EQUAL(std::get<0>(*i), 20);
+ BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test2"));
+ }
+ if (counter == 3)
+ {
+ BOOST_CHECK_EQUAL(std::get<0>(*i), 100);
+ BOOST_CHECK_EQUAL(std::get<1>(*i), Name("test3"));
+ }
+ }
+}
+
+BOOST_AUTO_TEST_CASE(Decode)
+{
+ Block linkBlock(LinkTest, sizeof(LinkTest));
+ Link link(linkBlock);
+ BOOST_CHECK_EQUAL(link.getName(), Name("/local/ndn/prefix"));
+ Link::DelegationSet delegations = link.getDelegations();
+ int counter = 0;
+
+ for (auto i = delegations.begin(); i != delegations.end(); i++) {
+ counter++;
+ if (counter == 1)
+ {
+ BOOST_CHECK_EQUAL(std::get<0>(*i), 10);
+ BOOST_CHECK_EQUAL(std::get<1>(*i), Name("local"));
+ }
+ if (counter == 2)
+ {
+ BOOST_CHECK_EQUAL(std::get<0>(*i), 20);
+ BOOST_CHECK_EQUAL(std::get<1>(*i), Name("ndn"));
+ }
+ }
+}
+
+BOOST_AUTO_TEST_CASE(IncorrectContentType)
+{
+ Block linkBlock(IncorrectContentTypeLink, sizeof(IncorrectContentTypeLink));
+ Link link;
+ BOOST_REQUIRE_THROW(link.wireDecode(linkBlock), Link::Error);
+}
+
+BOOST_AUTO_TEST_CASE(MissingPreferenceEncoding)
+{
+ Block linkBlock(MissingPreferenceLink, sizeof(MissingPreferenceLink));
+ Link link;
+ BOOST_REQUIRE_THROW(link.wireDecode(linkBlock), Link::Error);
+}
+
+BOOST_AUTO_TEST_CASE(MissingNameEncoding)
+{
+ Block linkBlock(MissingNameLink, sizeof(MissingNameLink));
+ Link link;
+ BOOST_REQUIRE_THROW(link.wireDecode(linkBlock), Link::Error);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+} // namespace tests
+} // namespace ndn