本文整理汇总了Python中pyndn.data.Data.wireEncode方法的典型用法代码示例。如果您正苦于以下问题:Python Data.wireEncode方法的具体用法?Python Data.wireEncode怎么用?Python Data.wireEncode使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类pyndn.data.Data
的用法示例。
在下文中一共展示了Data.wireEncode方法的5个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: _processRecoveryInterest
# 需要导入模块: from pyndn.data import Data [as 别名]
# 或者: from pyndn.data.Data import wireEncode [as 别名]
def _processRecoveryInterest(self, interest, syncDigest, transport):
logging.getLogger(__name__).info("processRecoveryInterest")
if self._logFind(syncDigest) != -1:
tempContent = sync_state_pb2.SyncStateMsg()
for i in range(self._digestTree.size()):
content = getattr(tempContent, "ss").add()
content.name = self._applicationDataPrefixUri
content.type = SyncState_UPDATE
content.seqno.seq = self._sequenceNo
content.seqno.session = self._digestTree.get(i).getSessionNo()
if len(getattr(tempContent, "ss")) != 0:
# TODO: Check if this works in Python 3.
#pylint: disable=E1103
array = tempContent.SerializeToString()
#pylint: enable=E1103
data = Data(interest.getName())
data.setContent(Blob(array))
self._keyChain.sign(data, self._certificateName)
try:
transport.send(data.wireEncode().toBuffer())
except Exception as ex:
logging.getLogger(__name__).error(
"Error in transport.send: %s", str(ex))
return
logging.getLogger(__name__).info("send recovery data back")
logging.getLogger(__name__).info("%s", interest.getName().toUri())
示例2: _registerPrefixHelper
# 需要导入模块: from pyndn.data import Data [as 别名]
# 或者: from pyndn.data.Data import wireEncode [as 别名]
def _registerPrefixHelper(
self, registeredPrefixId, prefix, onInterest, onRegisterFailed, flags,
wireFormat):
"""
Do the work of registerPrefix to register with NDNx once we have an
_ndndId.
:param int registeredPrefixId: The
_RegisteredPrefix.getNextRegisteredPrefixId() which registerPrefix got
so it could return it to the caller. If this is 0, then don't add to
_registeredPrefixTable (assuming it has already been done).
"""
# Create a ForwardingEntry.
# Note: ndnd ignores any freshness that is larger than 3600 seconds and
# sets 300 seconds instead. To register "forever", (=2000000000 sec),
# the freshness period must be omitted.
forwardingEntry = ForwardingEntry()
forwardingEntry.setAction("selfreg")
forwardingEntry.setPrefix(prefix)
forwardingEntry.setForwardingFlags(flags)
content = forwardingEntry.wireEncode(wireFormat)
# Set the ForwardingEntry as the content of a Data packet and sign.
data = Data()
data.setContent(content)
# Set the name to a random value so that each request is unique.
nonce = bytearray(4)
for i in range(len(nonce)):
nonce[i] = _systemRandom.randint(0, 0xff)
data.getName().append(nonce)
# The ndnd ignores the signature, so set to blank values.
data.getSignature().getKeyLocator().setType(
KeyLocatorType.KEY_LOCATOR_DIGEST)
data.getSignature().getKeyLocator().setKeyData(
Blob(bytearray(32), False))
data.getSignature().setSignature(Blob(bytearray(128), False))
encodedData = data.wireEncode(wireFormat)
# Create an interest where the name has the encoded Data packet.
interestName = Name().append("ndnx").append(self._ndndId).append(
"selfreg").append(encodedData)
interest = Interest(interestName)
interest.setInterestLifetimeMilliseconds(4000.0)
interest.setScope(1)
encodedInterest = interest.wireEncode(wireFormat)
if registeredPrefixId != 0:
# Save the onInterest callback and send the registration interest.
self._registeredPrefixTable.append(Node._RegisteredPrefix(
registeredPrefixId, prefix, onInterest))
response = Node._RegisterResponse(
self, prefix, onInterest, onRegisterFailed, flags, wireFormat, False)
self.expressInterest(
interest, response.onData, response.onTimeout, wireFormat)
示例3: _registerPrefixHelper
# 需要导入模块: from pyndn.data import Data [as 别名]
# 或者: from pyndn.data.Data import wireEncode [as 别名]
def _registerPrefixHelper(
self, registeredPrefixId, prefix, onInterest, onRegisterFailed, flags,
wireFormat, face):
"""
Do the work of registerPrefix to register with NDNx once we have an
_ndndId.
:param int registeredPrefixId: The getNextEntryId() which registerPrefix
got so it could return it to the caller. If this is 0, then don't add
to _registeredPrefixTable (assuming it has already been done).
"""
if not WireFormat.ENABLE_NDNX:
# We can get here if the command signing info is set, but running NDNx.
raise RuntimeError(
"registerPrefix with NDNx is deprecated. To enable while you upgrade your code to use NFD, set WireFormat.ENABLE_NDNX = True")
# Create a ForwardingEntry.
# Note: ndnd ignores any freshness that is larger than 3600 seconds and
# sets 300 seconds instead. To register "forever", (=2000000000 sec),
# the freshness period must be omitted.
forwardingEntry = ForwardingEntry()
forwardingEntry.setAction("selfreg")
forwardingEntry.setPrefix(prefix)
forwardingEntry.setForwardingFlags(flags)
content = forwardingEntry.wireEncode(wireFormat)
# Set the ForwardingEntry as the content of a Data packet and sign.
data = Data()
data.setContent(content)
# Set the name to a random value so that each request is unique.
nonce = bytearray(4)
for i in range(len(nonce)):
nonce[i] = _systemRandom.randint(0, 0xff)
data.getName().append(nonce)
# The ndnd ignores the signature, so set to blank values.
data.getSignature().getKeyLocator().setType(
KeyLocatorType.KEY_LOCATOR_DIGEST)
data.getSignature().getKeyLocator().setKeyData(
Blob(bytearray(32), False))
data.getSignature().setSignature(Blob(bytearray(128), False))
encodedData = data.wireEncode(wireFormat)
# Create an interest where the name has the encoded Data packet.
interestName = Name().append("ndnx").append(self._ndndId).append(
"selfreg").append(encodedData)
interest = Interest(interestName)
interest.setInterestLifetimeMilliseconds(4000.0)
interest.setScope(1)
if registeredPrefixId != 0:
interestFilterId = 0
if onInterest != None:
# registerPrefix was called with the "combined" form that includes
# the callback, so add an InterestFilterEntry.
interestFilterId = self.getNextEntryId()
self.setInterestFilter(
interestFilterId, InterestFilter(prefix), onInterest, face)
self._registeredPrefixTable.append(Node._RegisteredPrefix(
registeredPrefixId, prefix, interestFilterId))
# Send the registration interest.
response = Node._RegisterResponse(
self, prefix, onInterest, onRegisterFailed, flags, wireFormat, False,
face)
self.expressInterest(
self.getNextEntryId(), interest, response.onData, response.onTimeout,
wireFormat, face)
示例4: _processSyncInterest
# 需要导入模块: from pyndn.data import Data [as 别名]
# 或者: from pyndn.data.Data import wireEncode [as 别名]
def _processSyncInterest(self, index, syncDigest, transport):
"""
Common interest processing, using digest log to find the difference
after syncDigest.
:return: True if sent a data packet to satisfy the interest, otherwise
False.
:rtype: bool
"""
nameList = [] # of str
sequenceNoList = [] # of int
sessionNoList = [] # of int
for j in range(index + 1, len(self._digestLog)):
temp = self._digestLog[j].getData() # array of sync_state_pb2.SyncState.
for i in range(len(temp)):
syncState = temp[i]
if syncState.type != SyncState_UPDATE:
continue
if self._digestTree.find(
syncState.name, syncState.seqno.session) != -1:
n = -1
for k in range(len(nameList)):
if nameList[k] == syncState.name:
n = k
break
if n == -1:
nameList.append(syncState.name)
sequenceNoList.append(syncState.seqno.seq)
sessionNoList.append(syncState.seqno.session)
else:
sequenceNoList[n] = syncState.seqno.seq
sessionNoList[n] = syncState.seqno.session
tempContent = sync_state_pb2.SyncStateMsg()
for i in range(len(nameList)):
content = getattr(tempContent, "ss").add()
content.name = nameList[i]
content.type = SyncState_UPDATE
content.seqno.seq = sequenceNoList[i]
content.seqno.session = sessionNoList[i]
sent = False
if len(getattr(tempContent, "ss")) != 0:
name = Name(self._applicationBroadcastPrefix)
name.append(syncDigest)
# TODO: Check if this works in Python 3.
#pylint: disable=E1103
array = tempContent.SerializeToString()
#pylint: enable=E1103
data = Data(name)
data.setContent(Blob(array))
self._keyChain.sign(data, self._certificateName)
try:
transport.send(data.wireEncode().toBuffer())
except Exception as ex:
logging.getLogger(__name__).error(
"Error in transport.send: %s", str(ex))
return
sent = True
logging.getLogger(__name__).info("Sync Data send")
logging.getLogger(__name__).info("%s", name.toUri())
return sent
示例5: SafeBag
# 需要导入模块: from pyndn.data import Data [as 别名]
# 或者: from pyndn.data.Data import wireEncode [as 别名]
#.........这里部分代码省略.........
:rtype: Blob
"""
return self._privateKeyBag
def wireDecode(self, input):
"""
Decode the input as an NDN-TLV SafeBag and update this object.
:param input: The array with the bytes to decode.
:type input: A Blob or an array type with int elements
"""
if isinstance(input, Blob):
input = input.buf()
# Decode directly as TLV. We don't support the WireFormat abstraction
# because this isn't meant to go directly on the wire.
decoder = TlvDecoder(input)
endOffset = decoder.readNestedTlvsStart(Tlv.SafeBag_SafeBag)
# Get the bytes of the certificate and decode.
certificateBeginOffset = decoder.getOffset()
certificateEndOffset = decoder.readNestedTlvsStart(Tlv.Data)
decoder.seek(certificateEndOffset)
self._certificate = Data()
self._certificate.wireDecode(
decoder.getSlice(certificateBeginOffset, certificateEndOffset),
TlvWireFormat.get())
self._privateKeyBag = Blob(
decoder.readBlobTlv(Tlv.SafeBag_EncryptedKeyBag), True)
decoder.finishNestedTlvs(endOffset)
def wireEncode(self, wireFormat = None):
"""
Encode this as an NDN-TLV SafeBag.
:return: The encoded byte array as a Blob.
:rtype: Blob
"""
# Encode directly as TLV. We don't support the WireFormat abstraction
# because this isn't meant to go directly on the wire.
encoder = TlvEncoder(256)
saveLength = len(encoder)
# Encode backwards.
encoder.writeBlobTlv(
Tlv.SafeBag_EncryptedKeyBag, self._privateKeyBag.buf())
# Add the entire Data packet encoding as is.
encoder.writeBuffer(
self._certificate.wireEncode(TlvWireFormat.get()).buf())
encoder.writeTypeAndLength(
Tlv.SafeBag_SafeBag, len(encoder) - saveLength)
return Blob(encoder.getOutput(), False)
@staticmethod
def _makeSelfSignedCertificate(
keyName, privateKeyBag, publicKeyEncoding, password, digestAlgorithm,
wireFormat):
certificate = CertificateV2()
# Set the name.
now = Common.getNowMilliseconds()
certificateName = Name(keyName)