Python Interest.getName方法代码示例

# 需要导入模块: from pyndn import Interest [as 别名]
# 或者: from pyndn.Interest import getName [as 别名]
    def startPublishingAggregation(self, params, childrenList, dataType, aggregationType):
        if __debug__:
            print('Start publishing for ' + dataType + '-' + aggregationType)
        
        # aggregation calculating and publishing mechanism
        publishingPrefix = Name(self._identityName).append(DATA_COMPONENT).append(dataType).append(AGGREGATION_COMPONENT).append(aggregationType)
        self._dataQueue[dataType + aggregationType] = DataQueue(params, childrenList, publishingPrefix)

        if len(childrenList.keys()) == 0:
            # TODO: make start_time optional for leaf nodes
            self._loop.call_later(int(params['producer_interval']), self.calculateAggregation, dataType, aggregationType, childrenList, int(params['start_time']), int(params['producer_interval']), publishingPrefix, True)
        else:
            # express interest for children who produce the same data and aggregation type
            for childName in childrenList.keys():
                name = Name(self._identityName).append(childName).append(DATA_COMPONENT).append(dataType).append(AGGREGATION_COMPONENT).append(aggregationType)
                interest = Interest(name)
                # if start_time is specified, we ask for data starting at start_time; 
                # if not, we ask for the right most child and go from there
                if ('start_time' in childrenList[childName]):
                    endTime = int(childrenList[childName]['start_time']) + int(childrenList[childName]['producer_interval'])
                    interest.getName().append(str(childrenList[childName]['start_time'])).append(str(endTime))
                else:
                    # TODO: For now we are playing with historical data, for each run we don't want to miss any data, thus we start with leftMost
                    interest.setChildSelector(0)
                    interest.setMustBeFresh(True)
                interest.setInterestLifetimeMilliseconds(DEFAULT_INTEREST_LIFETIME)
                if __debug__:
                    print('  Issue interest: ' + interest.getName().toUri())
                self._face.expressInterest(interest, self.onData, self.onTimeout)

        return

# 需要导入模块: from pyndn import Interest [as 别名]
# 或者: from pyndn.Interest import getName [as 别名]
    def test_find_by_interest(self):
        self.anchorContainer.insert("group1", self.certificatePath1, 400.0)
        interest = Interest(self.identity1.getName())
        self.assertTrue(self.anchorContainer.find(interest) != None)
        interest1 = Interest(self.identity1.getName().getPrefix(-1))
        self.assertTrue(self.anchorContainer.find(interest1) != None)
        interest2 = Interest(Name(self.identity1.getName()).appendVersion(1))
        self.assertTrue(self.anchorContainer.find(interest2) == None)

        certificate3 = self.fixture.addCertificate(
          self.identity1.getDefaultKey(), "3")
        certificate4 = self.fixture.addCertificate(
          self.identity1.getDefaultKey(), "4")
        certificate5 = self.fixture.addCertificate(
          self.identity1.getDefaultKey(), "5")

        certificate3Copy = CertificateV2(certificate3)
        self.anchorContainer.insert("group2", certificate3Copy)
        self.anchorContainer.insert("group3", certificate4)
        self.anchorContainer.insert("group4", certificate5)

        interest3 = Interest(certificate3.getKeyName())
        foundCertificate = self.anchorContainer.find(interest3)
        self.assertTrue(foundCertificate != None)
        self.assertTrue(interest3.getName().isPrefixOf(foundCertificate.getName()))
        self.assertTrue(certificate3.getName().equals(foundCertificate.getName()))

        interest3.getExclude().appendComponent(
          certificate3.getName().get(CertificateV2.ISSUER_ID_OFFSET))
        foundCertificate = self.anchorContainer.find(interest3)
        self.assertTrue(foundCertificate != None)
        self.assertTrue(interest3.getName().isPrefixOf(foundCertificate.getName()))
        self.assertTrue(not foundCertificate.getName().equals(certificate3.getName()))

# 需要导入模块: from pyndn import Interest [as 别名]
# 或者: from pyndn.Interest import getName [as 别名]
def main():
    # The default Face connects to the local NFD.
    face = Face()

    interest = Interest(Name("/localhost/nfd/rib/list"))
    interest.setInterestLifetimeMilliseconds(4000)
    dump("Express interest", interest.getName().toUri())

    enabled = [True]

    def onComplete(content):
        enabled[0] = False
        printRibEntries(content)

    def onError(errorCode, message):
        enabled[0] = False
        dump(message)

    SegmentFetcher.fetch(
        face, interest, SegmentFetcher.DontVerifySegment, onComplete, onError)

    # Loop calling processEvents until a callback sets enabled[0] = False.
    while enabled[0]:
        face.processEvents()

        # We need to sleep for a few milliseconds so we don't use 100% of the CPU.
        time.sleep(0.01)

# 需要导入模块: from pyndn import Interest [as 别名]
# 或者: from pyndn.Interest import getName [as 别名]
def main():
    # Silence the warning from Interest wire encode.
    Interest.setDefaultCanBePrefix(True)

    interest = Interest()
    interest.wireDecode(TlvInterest)

    # Use a hard-wired secret for testing. In a real application the signer
    # ensures that the verifier knows the shared key and its keyName.
    key = Blob(bytearray([
       0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
      16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
    ]))

    if KeyChain.verifyInterestWithHmacWithSha256(interest, key):
      dump("Hard-coded interest signature verification: VERIFIED")
    else:
      dump("Hard-coded interest signature verification: FAILED")

    freshInterest = Interest(Name("/ndn/abc"))
    freshInterest.setMustBeFresh(False)
    keyName = Name("key1")
    dump("Signing fresh interest", freshInterest.getName().toUri())
    KeyChain.signWithHmacWithSha256(freshInterest, key, keyName)

    if KeyChain.verifyInterestWithHmacWithSha256(freshInterest, key):
      dump("Freshly-signed interest signature verification: VERIFIED")
    else:
      dump("Freshly-signed interest signature verification: FAILED")

# 需要导入模块: from pyndn import Interest [as 别名]
# 或者: from pyndn.Interest import getName [as 别名]
def main():
    # Silence the warning from Interest wire encode.
    Interest.setDefaultCanBePrefix(True)

    # The default Face connects to the local NFD.
    face = Face()

    interest = Interest(Name("/localhost/nfd/faces/list"))
    interest.setInterestLifetimeMilliseconds(4000)
    dump("Express interest", interest.getName().toUri())

    enabled = [True]

    def onComplete(content):
        enabled[0] = False
        printFaceStatuses(content)

    def onError(errorCode, message):
        enabled[0] = False
        dump(message)

    SegmentFetcher.fetch(face, interest, None, onComplete, onError)

    # Loop calling processEvents until a callback sets enabled[0] = False.
    while enabled[0]:
        face.processEvents()

        # We need to sleep for a few milliseconds so we don't use 100% of the CPU.
        time.sleep(0.01)

# 需要导入模块: from pyndn import Interest [as 别名]
# 或者: from pyndn.Interest import getName [as 别名]
    def _sendCertificateRequest(self, keyIdentity):
        """
        We compose a command interest with our public key info so the controller
        can sign us a certificate that can be used with other nodes in the network.
        """

        try:
            defaultKey = self._identityStorage.getDefaultKeyNameForIdentity(keyIdentity)
        except SecurityException:
            defaultKey = self._identityManager.generateRSAKeyPairAsDefault(keyIdentity)
        
        self.log.debug("Key name: " + defaultKey.toUri())

        message = CertificateRequestMessage()
        publicKey = self._identityManager.getPublicKey(defaultKey)

        message.command.keyType = publicKey.getKeyType()
        message.command.keyBits = publicKey.getKeyDer().toRawStr()

        for component in range(defaultKey.size()):
            message.command.keyName.components.append(defaultKey.get(component).toEscapedString())

        paramComponent = ProtobufTlv.encode(message)

        interestName = Name(self._policyManager.getTrustRootIdentity()).append("certificateRequest").append(paramComponent)
        interest = Interest(interestName)
        interest.setInterestLifetimeMilliseconds(10000) # takes a tick to verify and sign
        self._hmacHandler.signInterest(interest, keyName=self.prefix)

        self.log.info("Sending certificate request to controller")
        self.log.debug("Certificate request: "+interest.getName().toUri())
        self.face.expressInterest(interest, self._onCertificateReceived, self._onCertificateTimeout)

# 需要导入模块: from pyndn import Interest [as 别名]
# 或者: from pyndn.Interest import getName [as 别名]
def main():
    interest = Interest()
    interest.wireDecode(TlvInterest)
    dump("Interest:")
    dumpInterest(interest)

    # Set the name again to clear the cached encoding so we encode again.
    interest.setName(interest.getName())
    encoding = interest.wireEncode()
    dump("")
    dump("Re-encoded interest", encoding.toHex())

    reDecodedInterest = Interest()
    reDecodedInterest.wireDecode(encoding)
    dump("Re-decoded Interest:")
    dumpInterest(reDecodedInterest)

    freshInterest = Interest(Name("/ndn/abc"))
    freshInterest.setMustBeFresh(False)
    dump(freshInterest.toUri())
    freshInterest.setMinSuffixComponents(4)
    freshInterest.setMaxSuffixComponents(6)
    freshInterest.getKeyLocator().setType(KeyLocatorType.KEY_LOCATOR_DIGEST)
    freshInterest.getKeyLocator().setKeyData(bytearray(
      [0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
       0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F]))
    freshInterest.getExclude().appendComponent(Name("abc")[0]).appendAny()
    freshInterest.setInterestLifetimeMilliseconds(30000)
    freshInterest.setChildSelector(1)
    freshInterest.setMustBeFresh(True);
    freshInterest.setScope(2)

    identityStorage = MemoryIdentityStorage()
    privateKeyStorage = MemoryPrivateKeyStorage()
    keyChain = KeyChain(IdentityManager(identityStorage, privateKeyStorage),
                        SelfVerifyPolicyManager(identityStorage))

    # Initialize the storage.
    keyName = Name("/testname/DSK-123")
    certificateName = keyName.getSubName(0, keyName.size() - 1).append(
      "KEY").append(keyName[-1]).append("ID-CERT").append("0")
    identityStorage.addKey(keyName, KeyType.RSA, Blob(DEFAULT_RSA_PUBLIC_KEY_DER))
    privateKeyStorage.setKeyPairForKeyName(
      keyName, KeyType.RSA, DEFAULT_RSA_PUBLIC_KEY_DER, DEFAULT_RSA_PRIVATE_KEY_DER)

    # Make a Face just so that we can sign the interest.
    face = Face("localhost")
    face.setCommandSigningInfo(keyChain, certificateName)
    face.makeCommandInterest(freshInterest)

    reDecodedFreshInterest = Interest()
    reDecodedFreshInterest.wireDecode(freshInterest.wireEncode())
    dump("")
    dump("Re-decoded fresh Interest:")
    dumpInterest(reDecodedFreshInterest)

    keyChain.verifyInterest(
      reDecodedFreshInterest, makeOnVerified("Freshly-signed Interest"),
      makeOnVerifyFailed("Freshly-signed Interest"))

# 需要导入模块: from pyndn import Interest [as 别名]
# 或者: from pyndn.Interest import getName [as 别名]
def processFaceStatus(encodedFaceStatus, prefix, uri, face, enabled):
    """
    This is called when all the segments are received to decode the
    encodedFaceStatus as a TLV FaceStatus message. If the face ID exists for the
    face URL, use it to call registerRoute(), otherwise send a
    /localhost/nfd/faces/create command to create the face.

    :param Blob encodedFaceStatus: The TLV-encoded FaceStatus.
    :param Name prefix: The prefix name to register.
    :param str uri: The remote URI in case we need to tell NFD to create a face.
    :param Face face: The Face which is used to sign the command interest and
      call expressInterest.
    :param enabled: On success or error, set enabled[0] = False.
    :type enabled: An array with one bool element
    """
    if encodedFaceStatus.size() == 0:
        # No result, so we need to tell NFD to create the face.
        # Encode the ControlParameters.
        message = \
          control_parameters_pb2.ControlParametersTypes.ControlParametersMessage()
        message.control_parameters.uri = uri
        encodedControlParameters = ProtobufTlv.encode(message)

        interest = Interest(Name("/localhost/nfd/faces/create"))
        interest.getName().append(encodedControlParameters)
        interest.setInterestLifetimeMilliseconds(10000)

        def onData(localInterest, data):
            processCreateFaceResponse(data.getContent(), prefix, face, enabled)

        def onTimeout(localInterest):
            enabled[0] = False
            dump("Face create command timed out.")

        # Sign and express the interest.
        face.makeCommandInterest(interest)
        face.expressInterest(interest, onData, onTimeout)
    else:
        decodedFaceStatus = face_status_pb2.FaceStatusMessage()
        ProtobufTlv.decode(decodedFaceStatus, encodedFaceStatus)

        faceId = decodedFaceStatus.face_status[0].face_id

        dump("Found face ID ", faceId)
        registerRoute(prefix, faceId, face, enabled)

# 需要导入模块: from pyndn import Interest [as 别名]
# 或者: from pyndn.Interest import getName [as 别名]
def main():
    # Silence the warning from Interest wire encode.
    Interest.setDefaultCanBePrefix(True)

    interest = Interest()
    interest.wireDecode(TlvInterest)
    dump("Interest:")
    dumpInterest(interest)

    # Set the name again to clear the cached encoding so we encode again.
    interest.setName(interest.getName())
    encoding = interest.wireEncode()
    dump("")
    dump("Re-encoded interest", encoding.toHex())

    reDecodedInterest = Interest()
    reDecodedInterest.wireDecode(encoding)
    dump("Re-decoded Interest:")
    dumpInterest(reDecodedInterest)

    freshInterest = (Interest(Name("/ndn/abc"))
      .setMustBeFresh(False)
      .setMinSuffixComponents(4)
      .setMaxSuffixComponents(6)
      .setInterestLifetimeMilliseconds(30000)
      .setChildSelector(1)
      .setMustBeFresh(True))
    freshInterest.getKeyLocator().setType(KeyLocatorType.KEY_LOCATOR_DIGEST)
    freshInterest.getKeyLocator().setKeyData(bytearray(
      [0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
       0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F]))
    freshInterest.getExclude().appendComponent(Name("abc")[0]).appendAny()
    freshInterest.getForwardingHint().add(1, Name("/A"))
    dump(freshInterest.toUri())

    # Set up the KeyChain.
    keyChain = KeyChain("pib-memory:", "tpm-memory:")
    keyChain.importSafeBag(SafeBag
      (Name("/testname/KEY/123"),
       Blob(DEFAULT_RSA_PRIVATE_KEY_DER, False),
       Blob(DEFAULT_RSA_PUBLIC_KEY_DER, False)))
    validator = Validator(ValidationPolicyFromPib(keyChain.getPib()))

    # Make a Face just so that we can sign the interest.
    face = Face("localhost")
    face.setCommandSigningInfo(keyChain, keyChain.getDefaultCertificateName())
    face.makeCommandInterest(freshInterest)

    reDecodedFreshInterest = Interest()
    reDecodedFreshInterest.wireDecode(freshInterest.wireEncode())
    dump("")
    dump("Re-decoded fresh Interest:")
    dumpInterest(reDecodedFreshInterest)

    validator.validate(
      reDecodedFreshInterest, makeSuccessCallback("Freshly-signed Interest"),
      makeFailureCallback("Freshly-signed Interest"))

# 需要导入模块: from pyndn import Interest [as 别名]
# 或者: from pyndn.Interest import getName [as 别名]
    def test_max_ndn_packet_size(self):
        # Construct an interest whose encoding is one byte larger than getMaxNdnPacketSize.
        targetSize = Face.getMaxNdnPacketSize() + 1
        # Start with an interest which is almost the right size.
        interest = Interest()
        interest.getName().append(bytearray(targetSize))
        initialSize = interest.wireEncode().size()
        # Now replace the component with the desired size which trims off the extra encoding.
        interest.setName(
          (Name().append(bytearray(targetSize - (initialSize - targetSize)))))
        interestSize = interest.wireEncode().size()
        self.assertEqual(targetSize, interestSize,
          "Wrong interest size for MaxNdnPacketSize")

        with self.assertRaises(RuntimeError):
            # If no error is raised, then expressInterest didn't throw an
            # exception when the interest size exceeds getMaxNdnPacketSize()
            self.face.expressInterest(interest, Mock(), Mock())

# 需要导入模块: from pyndn import Interest [as 别名]
# 或者: from pyndn.Interest import getName [as 别名]
def main():
    prefix = Name("/nfd/edu/ucla/remap/test")
    # Route to aleph.ndn.ucla.edu.  Have to use the canonical name with an IP
    # address and port.
    uri = "udp4://128.97.98.7:6363"

    # The default Face connects to the local NFD.
    face = Face()

    # Use the system default key chain and certificate name to sign commands.
    keyChain = KeyChain()
    face.setCommandSigningInfo(keyChain, keyChain.getDefaultCertificateName())

    # Create the /localhost/nfd/faces/query command interest, including the
    # FaceQueryFilter. Construct the FaceQueryFilter using the structure in
    # face_query_filter_pb2 which was produced by protoc.
    message = face_query_filter_pb2.FaceQueryFilterMessage()
    filter = message.face_query_filter.add()
    filter.uri = uri
    encodedFilter = ProtobufTlv.encode(message)

    interest = Interest(Name("/localhost/nfd/faces/query"))
    interest.getName().append(encodedFilter)

    enabled = [True]

    def onComplete(content):
        processFaceStatus(content, prefix, uri, face, enabled)

    def onError(errorCode, message):
        enabled[0] = False
        dump(message)

    SegmentFetcher.fetch(
        face, interest, SegmentFetcher.DontVerifySegment, onComplete, onError)

    # Loop calling processEvents until a callback sets enabled[0] = False.
    while enabled[0]:
        face.processEvents()

        # We need to sleep for a few milliseconds so we don't use 100% of the CPU.
        time.sleep(0.01)

# 需要导入模块: from pyndn import Interest [as 别名]
# 或者: from pyndn.Interest import getName [as 别名]
    def _sendCertificateRequest(self, keyIdentity):
        """
        We compose a command interest with our public key info so the controller
        can sign us a certificate that can be used with other nodes in the network.
        """

        #TODO: GENERATE A NEW PUBLIC/PRIVATE PAIR INSTEAD OF COPYING
        makeKey = False
        try:
            defaultKey = self._identityStorage.getDefaultKeyNameForIdentity(keyIdentity)
            newKeyName = defaultKey
        except SecurityException:
            defaultIdentity = self._keyChain.getDefaultIdentity()
            defaultKey = self._identityStorage.getDefaultKeyNameForIdentity(defaultIdentity)
            newKeyName = self._identityStorage.getNewKeyName(keyIdentity, True)
            makeKey = True
             
        self.log.debug("Found key: " + defaultKey.toUri()+ " renaming as: " + newKeyName.toUri())

        keyType = self._identityStorage.getKeyType(defaultKey)
        keyDer = self._identityStorage.getKey(defaultKey)

        if makeKey:
            try:
                privateDer = self._identityManager.getPrivateKey(defaultKey)
            except SecurityException:
                # XXX: is recovery impossible?
                pass
            else:
                try:
                    self._identityStorage.addKey(newKeyName, keyType, keyDer)
                    self._identityManager.addPublicKey(newKeyName, keyDer)
                    self._identityManager.addPrivateKey(newKeyName, privateDer)
                except SecurityException:
                    # TODO: key shouldn't exist...
                    pass

        message = CertificateRequestMessage()
        message.command.keyType = keyType
        message.command.keyBits = keyDer.toRawStr()

        for component in range(newKeyName.size()):
            message.command.keyName.components.append(newKeyName.get(component).toEscapedString())

        paramComponent = ProtobufTlv.encode(message)

        interestName = Name(self._policyManager.getTrustRootIdentity()).append("certificateRequest").append(paramComponent)
        interest = Interest(interestName)
        interest.setInterestLifetimeMilliseconds(10000) # takes a tick to verify and sign
        self._hmacHandler.signInterest(interest, keyName=self.prefix)

        self.log.info("Sending certificate request to controller")
        self.log.debug("Certificate request: "+interest.getName().toUri())
        self.face.expressInterest(interest, self._onCertificateReceived, self._onCertificateTimeout)

# 需要导入模块: from pyndn import Interest [as 别名]
# 或者: from pyndn.Interest import getName [as 别名]
    def onSyncTimeout(self, interest):
        newInterest = Interest(Name(self._syncPrefix).append(self._currentDigest))
        newInterest.setInterestLifetimeMilliseconds(self._syncInterestLifetime)
        newInterest.setMustBeFresh(True)
        self._numOutstandingInterest -= 1
        print "re-expressing: " + newInterest.getName().toUri()

        if self._numOutstandingInterest <= 0:
            self._face.expressInterest(newInterest, self.onSyncData, self.onSyncTimeout)
            self._numOutstandingInterest += 1
        return

# 需要导入模块: from pyndn import Interest [as 别名]
# 或者: from pyndn.Interest import getName [as 别名]
def registerRoute(prefix, faceId, face, enabled):
    """
    Use /localhost/nfd/rib/register to register the prefix to the faceId.

    :param Name prefix: The prefix name to register.
    :param int faceId: The face ID.
    :param Face face: The Face which is used to sign the command interest and
      call expressInterest.
    :param enabled: On success or error, set enabled[0] = False.
    :type enabled: An array with one bool element
    """
    # Use default values
    origin = 255
    cost = 0
    CHILD_INHERIT = 1
    flags = CHILD_INHERIT

    message = control_parameters_pb2.ControlParametersTypes.ControlParametersMessage()
    for i in range(prefix.size()):
        message.control_parameters.name.component.append(prefix[i].getValue().toBytes())
    message.control_parameters.face_id = faceId
    message.control_parameters.origin = origin
    message.control_parameters.cost = cost
    message.control_parameters.flags = flags
    encodedControlParameters = ProtobufTlv.encode(message)
    interest = Interest(Name("/localhost/nfd/rib/register"))
    interest.getName().append(encodedControlParameters)
    interest.setInterestLifetimeMilliseconds(10000)

    # Sign and express the interest.
    face.makeCommandInterest(interest)

    def onData(localInterest, data):
        enabled[0] = False
        processRegisterResponse(data.getContent())

    def onTimeout(localInterest):
        enabled[0] = False
        dump("Register route command timed out.")

    face.expressInterest(interest, onData, onTimeout)

# 需要导入模块: from pyndn import Interest [as 别名]
# 或者: from pyndn.Interest import getName [as 别名]
 def start(self):
     """
     Starts the discovery
     """
     interest = Interest(Name(self._syncPrefix).append(self._initialDigest))
     interest.setMustBeFresh(True)
     interest.setInterestLifetimeMilliseconds(self._syncInterestLifetime)
     self._face.expressInterest(interest, self.onSyncData, self.onSyncTimeout)
     self._numOutstandingInterest += 1
     if __debug__:
         print("Express interest: " + interest.getName().toUri())
     return