/// <summary>
/// Append a timestamp component and a random nonce component to interest's
/// name. This ensures that the timestamp is greater than the timestamp used in
/// the previous call.
/// </summary>
///
/// <param name="interest">The interest whose name is append with components.</param>
/// <param name="wireFormat">A WireFormat object used to encode the SignatureInfo.</param>
public void prepareCommandInterestName(Interest interest,
WireFormat wireFormat)
{
double timestamp;
lock (lastUsedTimestampLock_) {
// nowOffsetMilliseconds_ is only used for testing.
double now = net.named_data.jndn.util.Common.getNowMilliseconds() + nowOffsetMilliseconds_;
timestamp = Math.Round(now, MidpointRounding.AwayFromZero);
while (timestamp <= lastUsedTimestamp_)
{
timestamp += 1.0d;
}
// Update the timestamp now while it is locked. In the small chance that
// signing fails, it just means that we have bumped the timestamp.
lastUsedTimestamp_ = timestamp;
}
// The timestamp is encoded as a TLV nonNegativeInteger.
TlvEncoder encoder = new TlvEncoder(8);
encoder.writeNonNegativeInteger((long)timestamp);
interest.getName().append(new Blob(encoder.getOutput(), false));
// 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.
ByteBuffer randomBuffer = ILOG.J2CsMapping.NIO.ByteBuffer.allocate(8);
// Note: SecureRandom is thread safe.
net.named_data.jndn.util.Common.getRandom().nextBytes(randomBuffer.array());
interest.getName().append(new Blob(randomBuffer, false));
}
/// <summary>
/// Encode this Schedule.
/// </summary>
///
/// <returns>The encoded buffer.</returns>
public Blob wireEncode()
{
// For now, don't use WireFormat and hardcode to use TLV since the encoding
// doesn't go out over the wire, only into the local SQL database.
TlvEncoder encoder = new TlvEncoder(256);
int saveLength = encoder.getLength();
// Encode backwards.
// Encode the blackIntervalList.
int saveLengthForList = encoder.getLength();
for (IIterator i = blackIntervalList_.descendingIterator(); i.HasNext();)
{
RepetitiveInterval element = (RepetitiveInterval)i.Next();
encodeRepetitiveInterval(element, encoder);
}
encoder.writeTypeAndLength(net.named_data.jndn.encoding.tlv.Tlv.Encrypt_BlackIntervalList,
encoder.getLength() - saveLengthForList);
// Encode the whiteIntervalList.
saveLengthForList = encoder.getLength();
for (IIterator i_0 = whiteIntervalList_.descendingIterator(); i_0.HasNext();)
{
RepetitiveInterval element_1 = (RepetitiveInterval)i_0.Next();
encodeRepetitiveInterval(element_1, encoder);
}
encoder.writeTypeAndLength(net.named_data.jndn.encoding.tlv.Tlv.Encrypt_WhiteIntervalList,
encoder.getLength() - saveLengthForList);
encoder.writeTypeAndLength(net.named_data.jndn.encoding.tlv.Tlv.Encrypt_Schedule, encoder.getLength()
- saveLength);
return(new Blob(encoder.getOutput(), false));
}
/// <summary>
/// Encode this as an NDN-TLV SafeBag.
/// </summary>
///
/// <returns>The encoded byte array as a Blob.</returns>
public Blob wireEncode()
{
// Encode directly as TLV. We don't support the WireFormat abstraction
// because this isn't meant to go directly on the wire.
TlvEncoder encoder = new TlvEncoder(256);
int saveLength = encoder.getLength();
// Encode backwards.
encoder.writeBlobTlv(net.named_data.jndn.encoding.tlv.Tlv.SafeBag_EncryptedKeyBag, privateKeyBag_.buf());
// Add the entire Data packet encoding as is.
encoder.writeBuffer(certificate_.wireEncode(net.named_data.jndn.encoding.TlvWireFormat.get()).buf());
encoder.writeTypeAndLength(net.named_data.jndn.encoding.tlv.Tlv.SafeBag_SafeBag, encoder.getLength()
- saveLength);
return(new Blob(encoder.getOutput(), false));
}
/// <summary>
/// Encode this Schedule.
/// </summary>
///
/// <returns>The encoded buffer.</returns>
public Blob wireEncode()
{
// For now, don't use WireFormat and hardcode to use TLV since the encoding
// doesn't go out over the wire, only into the local SQL database.
TlvEncoder encoder = new TlvEncoder(256);
int saveLength = encoder.getLength();
// Encode backwards.
// Encode the blackIntervalList.
int saveLengthForList = encoder.getLength();
Object[] array = ILOG.J2CsMapping.Collections.Collections.ToArray(blackIntervalList_);
System.Array.Sort(array);
for (int i = array.Length - 1; i >= 0; --i)
{
RepetitiveInterval element = (RepetitiveInterval)array[i];
encodeRepetitiveInterval(element, encoder);
}
encoder.writeTypeAndLength(net.named_data.jndn.encoding.tlv.Tlv.Encrypt_BlackIntervalList,
encoder.getLength() - saveLengthForList);
// Encode the whiteIntervalList.
saveLengthForList = encoder.getLength();
array = ILOG.J2CsMapping.Collections.Collections.ToArray(whiteIntervalList_);
System.Array.Sort(array);
for (int i_0 = array.Length - 1; i_0 >= 0; --i_0)
{
RepetitiveInterval element_1 = (RepetitiveInterval)array[i_0];
encodeRepetitiveInterval(element_1, encoder);
}
encoder.writeTypeAndLength(net.named_data.jndn.encoding.tlv.Tlv.Encrypt_WhiteIntervalList,
encoder.getLength() - saveLengthForList);
encoder.writeTypeAndLength(net.named_data.jndn.encoding.tlv.Tlv.Encrypt_Schedule, encoder.getLength()
- saveLength);
return(new Blob(encoder.getOutput(), false));
}
/// <summary>
/// Append a timestamp component and a random value component to interest's
/// name. This ensures that the timestamp is greater than the timestamp used in
/// the previous call. Then use keyChain to sign the interest which appends a
/// SignatureInfo component and a component with the signature bits. If the
/// interest lifetime is not set, this sets it.
/// </summary>
///
/// <param name="interest">The interest whose name is append with components.</param>
/// <param name="keyChain">The KeyChain for calling sign.</param>
/// <param name="certificateName">The certificate name of the key to use for signing.</param>
/// <param name="wireFormat"></param>
public void generate(Interest interest, KeyChain keyChain,
Name certificateName, WireFormat wireFormat)
{
double timestamp;
lock (lastTimestampLock_) {
timestamp = Math.Round(net.named_data.jndn.util.Common.getNowMilliseconds(), MidpointRounding.AwayFromZero);
while (timestamp <= lastTimestamp_)
{
timestamp += 1.0d;
}
// Update the timestamp now while it is locked. In the small chance that
// signing fails, it just means that we have bumped the timestamp.
lastTimestamp_ = timestamp;
}
// The timestamp is encoded as a TLV nonNegativeInteger.
TlvEncoder encoder = new TlvEncoder(8);
encoder.writeNonNegativeInteger((long)timestamp);
interest.getName().append(new Blob(encoder.getOutput(), false));
// 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.
ByteBuffer randomBuffer = ILOG.J2CsMapping.NIO.ByteBuffer.allocate(8);
// Note: SecureRandom is thread safe.
net.named_data.jndn.util.Common.getRandom().nextBytes(randomBuffer.array());
interest.getName().append(new Blob(randomBuffer, false));
keyChain.sign(interest, certificateName, wireFormat);
if (interest.getInterestLifetimeMilliseconds() < 0)
{
// The caller has not set the interest lifetime, so set it here.
interest.setInterestLifetimeMilliseconds(1000.0d);
}
}
wireEncode()
{
TlvEncoder encoder = new TlvEncoder(256);
int saveLength = encoder.getLength();
// Encode backwards.
if (!other_.isNull())
{
encoder.writeBlobTlv(ContentMetaInfo_Other, other_.buf());
}
if (hasSegments_)
{
encoder.writeTypeAndLength(ContentMetaInfo_HasSegments, 0);
}
encoder.writeNonNegativeIntegerTlv
(ContentMetaInfo_Timestamp, (long)Math.Round(timestamp_));
encoder.writeBlobTlv
(ContentMetaInfo_ContentType, new Blob(contentType_).buf());
encoder.writeTypeAndLength
(ContentMetaInfo_ContentMetaInfo, encoder.getLength() - saveLength);
return(new Blob(encoder.getOutput(), false));
}