void
CommandInterestGenerator::generate
(Interest& interest, KeyChain& keyChain, const Name& certificateName,
WireFormat& wireFormat)
{
MillisecondsSince1970 timestamp = ::round(ndn_getNowMilliseconds());
while (timestamp <= lastTimestamp_)
timestamp += 1.0;
// The timestamp is encoded as a TLV nonNegativeInteger.
TlvEncoder encoder(8);
encoder.writeNonNegativeInteger((uint64_t)timestamp);
interest.getName().append(Blob(encoder.finish()));
// The random value is a TLV nonNegativeInteger too, but we know it is 8 bytes,
// so we don't need to call the nonNegativeInteger encoder.
uint8_t randomBuffer[8];
ndn_Error error;
if ((error = CryptoLite::generateRandomBytes(randomBuffer, sizeof(randomBuffer))))
throw runtime_error(ndn_getErrorString(error));
interest.getName().append(randomBuffer, sizeof(randomBuffer));
keyChain.sign(interest, certificateName, wireFormat);
if (interest.getInterestLifetimeMilliseconds() < 0)
// The caller has not set the interest lifetime, so set it here.
interest.setInterestLifetimeMilliseconds(1000.0);
// We successfully signed the interest, so update the timestamp.
lastTimestamp_ = timestamp;
}
static vector<string>
dumpInterest(const Interest& interest)
{
vector<string> result;
result.push_back(dump("name:", interest.getName().toUri()));
result.push_back(dump("minSuffixComponents:",
interest.getMinSuffixComponents() >= 0 ?
toString(interest.getMinSuffixComponents()) : "<none>"));
result.push_back(dump("maxSuffixComponents:",
interest.getMaxSuffixComponents() >= 0 ?
toString(interest.getMaxSuffixComponents()) : "<none>"));
if ((int)interest.getKeyLocator().getType() >= 0) {
if (interest.getKeyLocator().getType() == ndn_KeyLocatorType_KEY_LOCATOR_DIGEST)
result.push_back(dump("keyLocator: KeyLocatorDigest:",
interest.getKeyLocator().getKeyData().toHex()));
else if (interest.getKeyLocator().getType() == ndn_KeyLocatorType_KEYNAME)
result.push_back(dump("keyLocator: KeyName:",
interest.getKeyLocator().getKeyName().toUri()));
else
result.push_back(dump("keyLocator: <unrecognized KeyLocatorType"));
}
else
result.push_back(dump("keyLocator: <none>"));
result.push_back(dump("exclude:",
interest.getExclude().size() > 0 ? interest.getExclude().toUri() :
"<none>"));
result.push_back(dump("childSelector:",
interest.getChildSelector() >= 0 ? toString(interest.getChildSelector()) :
"<none>"));
result.push_back(dump("mustBeFresh:",
interest.getMustBeFresh() ? "True" : "False"));
result.push_back(dump("nonce:",
interest.getNonce().size() == 0 ? "<none>" :
interest.getNonce().toHex()));
result.push_back(dump("lifetimeMilliseconds:",
interest.getInterestLifetimeMilliseconds() < 0 ? "<none>" :
toString(interest.getInterestLifetimeMilliseconds())));
return result;
};
static void dumpInterest(const Interest& interest)
{
cout << "name: " << interest.getName().toUri() << endl;
cout << "minSuffixComponents: ";
if (interest.getMinSuffixComponents() >= 0)
cout << interest.getMinSuffixComponents() << endl;
else
cout << "<none>" << endl;
cout << "maxSuffixComponents: ";
if (interest.getMaxSuffixComponents() >= 0)
cout << interest.getMaxSuffixComponents() << endl;
else
cout << "<none>" << endl;
cout << "keyLocator: ";
if ((int)interest.getKeyLocator().getType() >= 0) {
if (interest.getKeyLocator().getType() == ndn_KeyLocatorType_KEY_LOCATOR_DIGEST)
cout << "KeyLocatorDigest: " << interest.getKeyLocator().getKeyData().toHex() << endl;
else if (interest.getKeyLocator().getType() == ndn_KeyLocatorType_KEYNAME)
cout << "KeyName: " << interest.getKeyLocator().getKeyName().toUri() << endl;
else
cout << "<unrecognized ndn_KeyLocatorType " << interest.getKeyLocator().getType() << ">" << endl;
}
else
cout << "<none>" << endl;
cout << "exclude: "
<< (interest.getExclude().size() > 0 ? interest.getExclude().toUri() : "<none>") << endl;
cout << "lifetimeMilliseconds: ";
if (interest.getInterestLifetimeMilliseconds() >= 0)
cout << interest.getInterestLifetimeMilliseconds() << endl;
else
cout << "<none>" << endl;
cout << "childSelector: ";
if (interest.getChildSelector() >= 0)
cout << interest.getChildSelector() << endl;
else
cout << "<none>" << endl;
cout << "mustBeFresh: " << (interest.getMustBeFresh() ? "true" : "false") << endl;
cout << "nonce: "
<< (interest.getNonce().size() > 0 ? interest.getNonce().toHex() : "<none>") << endl;
}
void
CommandInterestGenerator::generate
(Interest& interest, KeyChain& keyChain, const Name& certificateName,
WireFormat& wireFormat)
{
prepareCommandInterestName(interest, wireFormat);
keyChain.sign(interest, certificateName, wireFormat);
if (interest.getInterestLifetimeMilliseconds() < 0)
// The caller has not set the interest lifetime, so set it here.
interest.setInterestLifetimeMilliseconds(1000.0);
}
