def onInterest(self, prefix, interest, transport, registeredPrefixId):
initInterest = Name(interest.getName())
print "interest name:",initInterest.toUri()
d = Data(interest.getName().append(self.deviceComponent))
try:
if(initInterest == self.listPrefix):
print "initial db,start to set data's content"
currentString = ','.join(currentList)
d.setContent(currentString)
encodedData = d.wireEncode()
transport.send(encodedData.toBuffer())
print d.getName().toUri()
print d.getContent()
else:
self.excludeDevice = initInterest.get(self.listPrefix.size())
excDevice = self.excludeDevice.toEscapedString()
if(excDevice != str("exc")+self.device):
print "not init db,start to set data's content"
currentString = ','.join(currentList)
d.setContent(currentString)
encodedData = d.wireEncode()
transport.send(encodedData.toBuffer())
print d.getName().toUri()
print d.getContent()
else:
print"controller has exclude me, I have to remove register!!!!!!!"
self.face.removeRegisteredPrefix(registeredPrefixId)
print"register again"
self.face.registerPrefix(self.listPrefix,self.onInterest,self.onRegisterFailed)
except KeyboardInterrupt:
print "key interrupt"
sys.exit(1)
except Exception as e:
print e
d.setContent("Bad command\n")
finally:
self.keychain.sign(d,self.certificateName)
def onInterest(self, prefix, interest, transport, registeredPrefixId):
"""Called when an interest for the specified name is recieved"""
# keep track of when first interest was recieved
self._initial_time['download_time'] = time.time()
# set data to a byte array of a specified size
interestName = interest.getName()
data = Data(interestName)
data.setContent(self._byte_array)
# sign and send data
data.getMetaInfo().setFreshnessPeriod(3600 * 1000)
self._key_chain.sign(data, self._key_chain.getDefaultCertificateName())
transport.send(data.wireEncode().toBuffer())
# print additional information if verobse flag is set
if self._verbose:
dump("Replied to:", interestName.toUri())
# increment appropriate variables
self._interests_recieved += 1
self._interests_satisfied += 1
self._num_interests += 1
# stop loop if the required number of interests have been satisified
if self._num_interests >= self._max_interests:
self.shutdown()
def onPlayingCommand(self, prefix, interest, transport, prefixId):
interestName = Name(interest.getName())
commandComponent = interest.getName().get(self.prefix.size())
if commandComponent == Name.Component("stop"):
pass
if commandComponent == Name.Component("play"):
pass
else:
songName = commandComponent.toEscapedString()
songList = []
songList = songName.split('%2C')
for i in songList:
fmusic = i + str("-music.mp3")
print "started getting music file", i
g = GetFile(self._repoCommandPrefix, i, self._face, self.getOnset,
i)
g.oStream = open(fmusic, 'wb')
g.start()
#self._getFiles.append(g)
d = Data(interest.getName())
d.setContent("start to play: " + songName + "\n")
encodedData = d.wireEncode()
transport.send(encodedData.toBuffer())
def onPlayingCommand(self, prefix, interest, transport, prefixId):
print "receive interest"
interestName = Name(interest.getName())
commandComponent = interest.getName().get(self.prefix.size())
if commandComponent == Name.Component("stop"):
pass
if commandComponent == Name.Component("play"):
pass
else:
songName = commandComponent.toEscapedString()
print songName
songList = []
songList = songName.split('%2C')
print "songlist and its len",songList,len(songList)
for i in songList:
self.song = i
fmusic = i+str("-music.mp3")
self.ftxt = i + str("-os.txt")
self.ffreq = i + str("-freq.txt")
print "FMUSIC:",fmusic
self.thread = threading.Thread(target = self.mp.play_music, args = (fmusic,songList,self.q,))
self.thread.daemon = True
g = GetFile(self._repoCommandPrefix, i, self._face, self.getOnset)
#g = GetFile(self._repoCommandPrefix, ftxt, self._face, self.lightFunction)
g.oStream = open(fmusic,'wb')
g.start()
d = Data(interest.getName())
d.setContent("start to play: " + songName + "\n")
encodedData = d.wireEncode()
transport.send(encodedData.toBuffer())
def onInterest(self, prefix, interest, transport, registeredPrefixId):
interestName = interest.getName()
data = Data(interestName)
dt = datetime.now()
if (interestName.toUri() == "/vanet-ndn/iklanpertama"):
data.setContent(
"\nLakukan Pengisian Pulsa Telkomsel sekarang juga \nDapatkan pulsa 5000 dan kelipatan untuk setiap pembelian pulsa 10000 dan kelipatannya\n"
) #bagian ini bisa diganti dengan informasi dari sensor
elif (interestName.toUri() == "/vanet-ndn/iklankedua"):
data.setContent(
"\nLakukan Pengisian Kuota Indosat sekarang juga! \nDapatkan kemudahan dalam berinternet digenggamanmu\n"
) #bagian ini bisa diganti dengan informasi dari sensor
elif (interestName.toUri() == "/vanet-ndn/iklanketiga"):
data.setContent(
"\nIngin memiliki Smartphone baru? \nDapatkan smartphone impian mu dengan XL\nCek xl.co.id untuk penawaran menarik\n"
) #bagian ini bisa diganti dengan informasi dari sensor
else:
data.setContent(
"\nJarak kendaraan: \n"
) #bagian ini bisa diganti dengan informasi dari sensor
hourMilliseconds = 10 #3600 * 1000 #1000 jam
data.getMetaInfo().setFreshnessPeriod(hourMilliseconds)
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
transport.send(data.wireEncode().toBuffer())
print("Replied to: %s at %s" % (interestName.toUri(), dt))
#print("==================================================================\n")
pass
def onInterest(self, prefix, interest, transport, registeredPrefixId):
interestName = interest.getName()
interestParams = str(interest.getApplicationParameters())
addPrefixes = interestParams.split("|")
interestParams = interestParams + "|" + get_device_ip()
# For each Prefix recieved save it in local array
# Add route for that prefix from User to gateway router
for i in range(0, len(addPrefixes)):
print addPrefixes[i]
self.prefixesList.append(str(addPrefixes[i]))
os.system("nfdc route add " + str(addPrefixes[i]) + " " +
self.gatewayFace)
# Send prefixesList to gateway router
subprocess.call([
"python", "interestSender.py", "-u /ndnchat/register",
"-p " + interestParams
])
data = Data(interestName)
data.setContent("Register Successful")
hourMilliseconds = 3600 * 1000
data.getMetaInfo().setFreshnessPeriod(hourMilliseconds)
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
transport.send(data.wireEncode().toBuffer())
print "Sent advertisement to gateway router"
def onGetAllData(self, producedDataName, outerDataName):
maxLng = -1000
minLng = 1000
maxLat = -1000
minLat = 1000
for item in self._tasks[producedDataName]["dataset"]:
dataObject = json.loads(str(item))
if dataObject["lat"] > maxLat:
maxLat = dataObject["lat"]
if dataObject["lat"] < minLat:
minLat = dataObject["lat"]
if dataObject["lng"] > maxLng:
maxLng = dataObject["lng"]
if dataObject["lng"] < minLng:
minLng = dataObject["lng"]
if not self._encryptResult:
innerData = Data(Name(str(producedDataName)))
innerData.setContent(json.dumps({"minLat": minLat, "maxLat": maxLat, "minLng": minLng, "maxLng": maxLng}))
#self.keyChain.sign(innerData)
outerData = Data(Name(str(outerDataName)))
outerData.setContent(innerData.wireEncode())
#self.keyChain.sign(outerData)
self.memoryContentCache.add(outerData)
self.initiateContentStoreInsertion("/ndn/edu/ucla/remap/ndnfit/repo", outerData)
print "Calculation completed, put data to repo"
else:
print "Encrypt result is not implemented"
def onLightingCommand(self, prefix, interest, transport, prefixId):
interestName = Name(interest.getName())
#d = Data(interest.getName().getPrefix(prefix.size()+1))
d = Data(interest.getName())
# get the command parameters from the name
try:
commandComponent = interest.getName().get(prefix.size())
commandParams = interest.getName().get(prefix.size()+1)
lightingCommand = LightCommandMessage()
ProtobufTlv.decode(lightingCommand, commandParams.getValue())
self.log.info("Command: " + commandComponent.toEscapedString())
requestedColor = lightingCommand.command.pattern.colors[0]
colorStr = str((requestedColor.r, requestedColor.g, requestedColor.b))
self.log.info("Requested color: " + colorStr)
self.setPayloadColor(0, requestedColor)
self.sendLightPayload(1)
d.setContent("Gotcha: " + colorStr+ "\n")
except Exception as e:
print e
d.setContent("Bad command\n")
finally:
d.getMetaInfo().setFinalBlockID(0)
self.signData(d)
encodedData = d.wireEncode()
transport.send(encodedData.toBuffer())
def onPlayingCommand(self, prefix, interest, transport, prefixId):
interestName = Name(interest.getName())
commandComponent = interest.getName().get(self.prefix.size())
if commandComponent == Name.Component("stop"):
pass
if commandComponent == Name.Component("play"):
pass
else:
songName = commandComponent.toEscapedString()
songList = []
songList = songName.split('%2C')
for i in songList:
fmusic = i + str("-music.mp3")
print "started getting music file", i
g = GetFile(self._repoCommandPrefix, i, self._face, self.getOnset, i)
g.oStream = open(fmusic,'wb')
g.start()
#self._getFiles.append(g)
d = Data(interest.getName())
d.setContent("start to play: " + songName + "\n")
encodedData = d.wireEncode()
transport.send(encodedData.toBuffer())
def publishData(self):
timestamp = time.time()
info = {''}
if self._pir == None:
cpu_use = ps.cpu_percent()
users = [u.name for u in ps.users()]
nProcesses = len(ps.pids())
memUse = ps.virtual_memory().percent
swapUse = ps.swap_memory().percent
info = {'count': self._count, 'cpu_usage':cpu_use, 'users':users, 'processes':nProcesses,
'memory_usage':memUse, 'swap_usage':swapUse}
else:
info = {'count': self._count, 'pir_bool': self._pir.read()}
self._count += 1
dataOut = Data(Name(self._dataPrefix).appendVersion(int(timestamp)))
dataOut.setContent(json.dumps(info))
dataOut.getMetaInfo().setFreshnessPeriod(10000)
self.signData(dataOut)
#self._dataCache.add(dataOut)
# instead of adding data to content cache, we put data to nfd anyway
self.send(dataOut.wireEncode().buf())
print('data name: ' + dataOut.getName().toUri() + '; content: ' + str(info))
# repeat every 1 seconds
self.loop.call_later(1, self.publishData)
def onInterest(self, prefix, interest, transport, registeredPrefixId):
print "received interest"
initInterest = Name(interest.getName())
print "interest name:", initInterest.toUri()
#d = Data(interest.getName().getPrefix(prefix.size()+1))
#self.excludeDevice = interest.getName().get(prefix.size())
#initInterest = interest.getName()
d = Data(interest.getName().append(self.deviceComponent))
try:
print "start to set data's content"
currentString = ','.join(currentList)
d.setContent("songList of " + self.device + ":" + currentString +
"\n")
self.face.registerPrefix(self.changePrefix, self.onInterest,
self.onRegisterFailed)
except KeyboardInterrupt:
print "key interrupt"
sys.exit(1)
except Exception as e:
print e
d.setContent("Bad command\n")
finally:
self.keychain.sign(d, self.certificateName)
encodedData = d.wireEncode()
transport.send(encodedData.toBuffer())
print d.getName().toUri()
print d.getContent()
self.stop()
'''print"remove register"
def _onConfigurationReceived(self, prefix, interest, transport, prefixId):
# the interest we get here is signed by HMAC, let's verify it
self.tempPrefixId = prefixId # didn't get it from register because of the event loop
interestName = interest.getName()
replyData = Data(interestName)
if len(interestName) == len(prefix):
# this is a discovery request. Check the exclude to see if we should
# return our serial
serial = self.getSerial()
serialComponent = Name.Component(serial)
if not interest.getExclude().matches(serialComponent):
replyData.setContent(serial)
self.sendData(replyData, transport, False) # no point in signing
elif (self._hmacHandler.verifyInterest(interest)):
# we have a match! decode the network parameters
configComponent = interest.getName()[len(prefix)+1]
replyData.setContent('200')
self._hmacHandler.signData(replyData, keyName=self.prefix)
transport.send(replyData.wireEncode().buf())
environmentConfig = DeviceConfigurationMessage()
ProtobufTlv.decode(environmentConfig, configComponent.getValue())
networkPrefix = self._extractNameFromField(environmentConfig.configuration.networkPrefix)
controllerName = self._extractNameFromField(environmentConfig.configuration.controllerName)
controllerName = Name(networkPrefix).append(controllerName)
self._policyManager.setEnvironmentPrefix(networkPrefix)
self._policyManager.setTrustRootIdentity(controllerName)
self.deviceSuffix = self._extractNameFromField(environmentConfig.configuration.deviceSuffix)
self._configureIdentity = Name(networkPrefix).append(self.deviceSuffix)
self._sendCertificateRequest(self._configureIdentity)
def onInterest(self, prefix, interest, transport, registeredPrefixId):
filepath = 'cpu.txt'
counter = 0.0
avg = 0
fp = open(filepath)
line = fp.readline()
cnt = 0
while line:
conv_int = float(line)
line = fp.readline()
#print("Line {}: {}".format(cnt, line.strip()))
counter = counter + conv_int
cnt += 1
total = (cnt)
#print (total)
avg = (counter) / total
#print (avg)
interestName = interest.getName()
data = Data(interestName)
data.setContent("CPU avg:" + str(avg))
hourMilliseconds = 3600 * 1000
data.getMetaInfo().setFreshnessPeriod(hourMilliseconds)
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
transport.send(data.wireEncode().toBuffer())
print "Replied to: %s" % interestName.toUri()
def onDataInterest(prefix, interest, transport, pxID):
'''
For publishing face
'''
# just make up some data and return it
interestName = interest.getName()
logger.info("Interest for " + interestName.toUri())
## CURRENTLY ASSUMES THERE'S A VERSION/SEGMENT SUFFIX!
dataName = Name(interestName.getPrefix(-1))
ts = (time.time())
segmentId = 0
try:
segmentId = interestName().get(-1).toSegment()
except:
logger.debug("Could not find segment id!")
dataName.appendSegment(segmentId)
versionStr = interestName.get(-2).getValue().toRawStr()
logger.debug('publishing ' + versionStr)
info = getInfoForVersion(versionStr)
d = Data(dataName)
content = "(" + str(ts) + ") Data named " + dataName.toUri()
d.setContent(content)
d.getMetaInfo().setFinalBlockID(segmentId)
keychain.sign(d, certName)
encodedData = d.wireEncode()
now = time.time()
if info is not None:
info['publish_time'] = now
transport.send(encodedData.toBuffer())
def onPublishInterest(self, prefix, interest, transport, pxID):
'''
For publishing face
'''
# just make up some data and return it
interestName = interest.getName()
logger.info("Interest for " + interestName.toUri())
## CURRENTLY ASSUMES THERE'S A VERSION+SEGMENT SUFFIX!
dataName = Name(interestName)
ts = (time.time())
segmentId = 0
#try:
# segmentId = interestName.get(-1).toSegment()
#except:
#logger.debug("Could not find segment id!")
#dataName.appendSegment(segmentId)
versionStr = str(interestName.get(-2).getValue())
logger.debug('Publishing ' + versionStr + ' @ ' + str(ts))
d = Data(dataName)
content = "(" + str(ts) + ") Data named " + dataName.toUri()
d.setContent(content)
d.getMetaInfo().setFinalBlockID(segmentId)
d.getMetaInfo().setFreshnessPeriod(1000)
self.keychain.sign(d, self.certificateName)
encodedData = d.wireEncode()
stats.insertDataForVersion(versionStr, {'publish_time': time.time()})
transport.send(encodedData.toBuffer())
def _onConfigurationReceived(self, prefix, interest, transport, prefixId):
# the interest we get here is signed by HMAC, let's verify it
self.tempPrefixId = prefixId # didn't get it from register because of the event loop
dataName = Name(interest.getName())
replyData = Data(dataName)
if (self._hmacHandler.verifyInterest(interest)):
# we have a match! decode the controller's name
configComponent = interest.getName().get(prefix.size())
replyData.setContent('200')
self._hmacHandler.signData(replyData, keyName=self.prefix)
transport.send(replyData.wireEncode().buf())
environmentConfig = DeviceConfigurationMessage()
ProtobufTlv.decode(environmentConfig, configComponent.getValue())
networkPrefix = self._extractNameFromField(environmentConfig.configuration.networkPrefix)
controllerName = self._extractNameFromField(environmentConfig.configuration.controllerName)
controllerName = Name(networkPrefix).append(controllerName)
self._policyManager.setEnvironmentPrefix(networkPrefix)
self._policyManager.setTrustRootIdentity(controllerName)
self.deviceSuffix = self._extractNameFromField(environmentConfig.configuration.deviceSuffix)
self._configureIdentity = Name(networkPrefix).append(self.deviceSuffix)
self._sendCertificateRequest(self._configureIdentity)
def onInterest(self, prefix, interest, transport, registeredPrefixId):
print "received interest"
initInterest = Name(interest.getName())
print "interest name:",initInterest.toUri()
d = Data(interest.getName().append(self.deviceComponent))
try:
print "start to set data's content"
currentString = ','.join(currentList)
d.setContent("songList of " +self.device+":"+currentString+ "\n")
self.face.registerPrefix(self.changePrefix,self.onInterest,self.onRegisterFailed)
except KeyboardInterrupt:
print "key interrupt"
sys.exit(1)
except Exception as e:
print e
d.setContent("Bad command\n")
finally:
self.keychain.sign(d,self.certificateName)
encodedData = d.wireEncode()
transport.send(encodedData.toBuffer())
print d.getName().toUri()
print d.getContent()
self.loop.close()
self.face.shutdown()
self.face = None
def onInterest(prefix, interest, transport, prefixID):
interestCallbackCount[0] += 1
data = Data(interest.getName())
data.setContent("SUCCESS")
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
encodedData = data.wireEncode()
transport.send(encodedData.toBuffer())
def wrap_content(self, name, content, key=None, key_locator=None):
"""
@param name - name of the data
@param content - data to be wrapped
@param key - key used to sign the data
@return the content object created
wraps the given name and content into a content object
"""
co = Data(Name(name))
co.setContent(content)
co.getMetaInfo().setFreshnessPeriod(5000)
co.getMetaInfo().setFinalBlockID(Name("/%00%09")[0])
identityStorage = MemoryIdentityStorage()
privateKeyStorage = MemoryPrivateKeyStorage()
identityManager = IdentityManager(identityStorage, privateKeyStorage)
keyChain = KeyChain(identityManager, None)
# Initialize the storage.
keyName = Name("/ndn/bms/DSK-default")
certificateName = keyName.getSubName(0, keyName.size() - 1).append(
"KEY").append(keyName[-1]).append("ID-CERT").append("0")
identityStorage.addKey(keyName, KeyType.RSA, Blob(DEFAULT_PUBLIC_KEY_DER))
privateKeyStorage.setKeyPairForKeyName(keyName, DEFAULT_PUBLIC_KEY_DER,
DEFAULT_PRIVATE_KEY_DER)
keyChain.sign(co, certificateName)
_data = co.wireEncode()
return _data.toRawStr()
def onInterest(self, prefix, interest, transport, registeredPrefixId):
"""
Append the next segment number to the prefix and send a new data packet.
If the last packet is sent, then set self._enabled[0] = False.
"""
maxSegment = 2
if self._segment >= maxSegment:
return
dump("Got interest", interest.toUri())
# Make and sign a Data packet for the segment.
self._segment += 1
data = Data(Name(prefix).appendSegment(self._segment))
content = "Segment number " + repr(self._segment)
data.content = content
self._keyChain.sign(data, self._certificateName)
encodedData = data.wireEncode()
transport.send(encodedData.toBuffer())
dump("Sent data packet", data.name.toUri())
if self._segment >= maxSegment:
# We sent the final data packet, so stop.
self._enabled[0] = False
def handleDataInterests(self, prefix, interest, transport, prefixId):
# TODO: verification
# we match the components to the name, and any '_' components
# are discarded. Then we run a MongoDB query and append the
# object id to allow for excludes
chosenSchema = (s for s in self.schemaList
if s.dbPrefix.match(prefix)).next()
interestName = interest.getName()
responseName = Name(interestName)
nameFields = chosenSchema.matchNameToSchema(interestName)
self.log.info("Data requested with params:\n\t{}".format(nameFields))
allResults = []
segment = 0
try:
segmentComponent = interest.getName()[-4]
segment = segmentComponent.toSegment()
except RuntimeError:
pass
(startPos, results) = self._segmentResponseData(nameFields, segment)
for result in results:
dataId = result[u'_id']
self.log.debug("Found object {}".format(dataId))
allResults.append(result)
#responseName.append(str(dataId))
totalCount = results.count(False)
responseObject = {'count':totalCount, 'skip':startPos, 'results':allResults}
responseData = Data(responseName)
resultEncoded = BSON.encode(responseObject)
responseData.setContent(resultEncoded)
transport.send(responseData.wireEncode().buf())
def test_encode_decode(self):
data = Data()
data.wireDecode(codedData2)
data.setContent(data.getContent())
encoding = data.wireEncode()
reDecodedData = Data()
reDecodedData.wireDecode(encoding)
self.assertEqual(dumpData(reDecodedData), initialDump2, 'Re-decoded data does not match original dump')
def test_encode_decode(self):
data = Data()
data.wireDecode(codedData)
data.setContent(data.getContent())
encoding = data.wireEncode()
reDecodedData = Data()
reDecodedData.wireDecode(encoding)
self.assertEqual(dumpData(reDecodedData), initialDump, 'Re-decoded data does not match original dump')
def onInterest(self, prefix, interest, face, interestFilterId, filter):
interestName = interest.getName()
data = Data(interestName)
data.setContent("Test Push Interest Polling model")
hourMilliseconds = 600 * 1000
data.getMetaInfo().setFreshnessPeriod(hourMilliseconds)
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
face.send(data.wireEncode().toBuffer())
print "Replied to Interest name: %s" % interestName.toUri()
print "Replied with Data name: %s" % interestName.toUri()
def onInterest(self, prefix, interest, transport, registeredPrefixId):
self._responseCount += 1
# Make and sign a Data packet.
data = Data(interest.getName())
content = "Echo " + interest.getName().toUri()
data.setContent(content)
self._keyChain.sign(data, self._certificateName)
encodedData = data.wireEncode()
dump("Sent content", content)
transport.send(encodedData.toBuffer())
def onInterest(self, prefix, interest, transport, registeredPrefixId):
self._responseCount += 1
# Make and sign a Data packet.
data = Data(interest.getName())
content = "Echo " + interest.getName().toUri()
data.setContent(content)
self._keyChain.sign(data, self._certificateName)
encodedData = data.wireEncode()
dump("Sent content", content)
transport.send(encodedData.toBuffer())
def onInterest(self, prefix, interest, transport, registeredPrefixId):
print "received interest"
initInterest = Name(interest.getName())
print "interest name:", initInterest.toUri()
#d = Data(interest.getName().getPrefix(prefix.size()+1))
#self.excludeDevice = interest.getName().get(prefix.size())
#initInterest = interest.getName()
d = Data(interest.getName().append(self.deviceComponent))
try:
if (initInterest == self.prefix):
print "start to set data's content"
currentString = ','.join(currentList)
d.setContent("songList of " + self.device + ":" +
currentString + "\n")
else:
self.excludeDevice = initInterest.get(prefix.size())
print "excludeDevice", self.excludeDevice.toEscapedString()
if (self.excludeDevice != self.deviceComponent):
print "start to set data's content"
currentString = ','.join(currentList)
d.setContent("songList of " + self.device + ":" +
currentString + "\n")
else:
print "remove register"
self.face.removeRegisteredPrefix(registeredPrefixId)
time.sleep(30)
#sleep 30s which means user cannot update the song list twice within 1 minutes
print "register again"
self.face.registerPrefix(self.prefix, self.onInterest,
self.onRegisterFailed)
except KeyboardInterrupt:
print "key interrupt"
sys.exit(1)
except Exception as e:
print e
d.setContent("Bad command\n")
finally:
self.keychain.sign(d, self.certificateName)
encodedData = d.wireEncode()
transport.send(encodedData.toBuffer())
print d.getName().toUri()
print d.getContent()
def onInterest(self, prefix, interest, transport, registeredPrefixId):
interestName = interest.getName()
data = Data(interestName)
data.setContent("Hello, " + interestName.toUri())
hourMilliseconds = 3600 * 1000
data.getMetaInfo().setFreshnessPeriod(hourMilliseconds)
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
transport.send(data.wireEncode().toBuffer())
print "Replied to: %s" % interestName.toUri()
def onInterest(self, prefix, interest, transport, registeredPrefixId):
print "received interest"
initInterest = Name(interest.getName())
print "interest name:",initInterest.toUri()
#d = Data(interest.getName().getPrefix(prefix.size()+1))
#self.excludeDevice = interest.getName().get(prefix.size())
#initInterest = interest.getName()
d = Data(interest.getName().append(self.deviceComponent))
try:
if(initInterest == self.prefix):
print "start to set data's content"
currentString = ','.join(currentList)
d.setContent("songList of " +self.device+":"+currentString+ "\n")
else:
self.excludeDevice = initInterest.get(prefix.size())
print "excludeDevice",self.excludeDevice.toEscapedString()
if(self.excludeDevice != self.deviceComponent):
print "start to set data's content"
currentString = ','.join(currentList)
d.setContent("songList of " +self.device+":"+currentString+ "\n")
else:
print"remove register"
self.face.removeRegisteredPrefix(registeredPrefixId)
time.sleep(30)
#sleep 30s which means user cannot update the song list twice within 1 minutes
print"register again"
self.face.registerPrefix(self.prefix, self.onInterest, self.onRegisterFailed)
except KeyboardInterrupt:
print "key interrupt"
sys.exit(1)
except Exception as e:
print e
d.setContent("Bad command\n")
finally:
self.keychain.sign(d,self.certificateName)
encodedData = d.wireEncode()
transport.send(encodedData.toBuffer())
print d.getName().toUri()
print d.getContent()
def onInterest(self, prefix, interest, face, interestFilterId, filter):
interestName = interest.getName()
### Extract Data content from Interest name
interest_name_components = interestName.toUri().split("/")
Data_content = interest_name_components[interest_name_components.index("push") + 1]
print 'Received Data: %s' %Data_content
data = Data(interestName)
data.setContent("ACK")
hourMilliseconds = 600 * 1000
data.getMetaInfo().setFreshnessPeriod(hourMilliseconds)
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
face.send(data.wireEncode().toBuffer())
print "Sending ACK"
def onInterest(self, prefix, interest, transport, registeredPrefixId):
interestName = interest.getName()
data = Data(interestName)
data.setContent("Hello, " + interestName.toUri())
hourMilliseconds = 3600 * 1000
data.getMetaInfo().setFreshnessPeriod(3600 * 1000)
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
transport.send(data.wireEncode().toBuffer())
print "Replied to: %s" % interestName.toUri()
def onInterest(self, prefix, interest, transport, registeredPrefixId):
"""
FileSync:
To be written (TBW)
"""
util.dump("Got interest packet with name", interest.getName().toUri())
util.dumpInterest(interest)
content = fileSyncBuf_pb2.FileSync()
sequenceNo = int(interest.getName().get(self.fileFolderPrefix.size() +
1).toEscapedString())
gotContent = False
#loop through all cached data and find out if you have some new content to respond with
for i in range(len(self.syncDataCache) - 1, -1, -1):
data = self.syncDataCache[i]
if data.sequenceNo == sequenceNo:
if data.dataType != fileSyncBuf_pb2.FileSync.UPDATE:
# Use setattr because "from" is a reserved keyword.
setattr(content, "from", self.screenName)
content.to = self.fileFolderName
content.dataType = data.dataType
content.timestamp = int(round(data.time / 1000.0))
else:
setattr(content, "from", self.screenName)
content.to = self.fileFolderName
content.dataType = data.dataType
content.data = data.data
content.timestamp = int(round(data.time / 1000.0))
gotContent = True
break
if gotContent:
logging.info("new content!")
#Serialize the pklistbuf
array = content.SerializeToString()
#Initialize the data with Name
data = Data(interest.getName())
#Set content for the data --> the serialized content to bytes
data.setContent(Blob(array))
#Add sign the data
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
def onInterest(self, prefix, interest, transport, registeredPrefixId):
"""Called when an interest for the specified name is recieved"""
interestName = interest.getName()
data = Data(interestName)
data.setContent("Hello, " + interestName.toUri())
hourMilliseconds = 3600 * 1000
data.getMetaInfo().setFreshnessPeriod(hourMilliseconds)
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
transport.send(data.wireEncode().toBuffer())
dump("Replied to:", interestName.toUri())
def onInterest(self, prefix, interest, transport, registeredPrefixId):
print("========= received [ interest ] ========= :\n" + interest.getName().toUri()) # for test
interestName = interest.getName()
appcontentstr = interest.getApplicationParameters()
data = Data(interestName)
data.setContent("Hello! This data come from producer-01.")
# hourMilliseconds = 3600 * 1000
hourMilliseconds = 0 # here I should set it 0 since it always need to fresh.
data.getMetaInfo().setFreshnessPeriod(hourMilliseconds)
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
transport.send(data.wireEncode().toBuffer())
print("\n ######## Replied [ data ] ########\n \n")
def onInterest(self, prefix, interest, transport, registeredPrefixId):
logging.debug('Received interest')
self._responseCount += 1
global g_responseCount
g_responseCount += 1
# Make and sign a Data packet.
data = Data(interest.getName())
content = self.data#interest.getName().toUri()
data.setContent(content)
self._keyChain.sign(data, self._certificateName)
encodedData = data.wireEncode()
#dump("Sent content", content)
transport.send(encodedData.toBuffer())
def onInterest(self, prefix, interest, transport, registeredPrefixId):
lines = open('cpu.txt', 'r')
numbers = map(float, lines)
max_number = max(numbers)
interestName = interest.getName()
data = Data(interestName)
data.setContent("CPU max:" + str(max_number))
hourMilliseconds = 3600 * 1000
data.getMetaInfo().setFreshnessPeriod(hourMilliseconds)
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
transport.send(data.wireEncode().toBuffer())
print "Replied to: %s" % interestName.toUri()
def main():
data = Data()
data.wireDecode(TlvData)
dump("Decoded Data:")
dumpData(data)
# Set the content again to clear the cached encoding so we encode again.
data.setContent(data.getContent())
encoding = data.wireEncode()
reDecodedData = Data()
reDecodedData.wireDecode(encoding)
dump("")
dump("Re-decoded Data:")
dumpData(reDecodedData)
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)
keyChain.verifyData(reDecodedData, makeOnVerified("Re-decoded Data"),
makeOnVerifyFailed("Re-decoded Data"))
freshData = Data(Name("/ndn/abc"))
freshData.setContent("SUCCESS!")
freshData.getMetaInfo().setFreshnessPeriod(5000)
freshData.getMetaInfo().setFinalBlockId(Name("/%00%09")[0])
keyChain.sign(freshData, certificateName)
dump("")
dump("Freshly-signed Data:")
dumpData(freshData)
keyChain.verifyData(freshData, makeOnVerified("Freshly-signed Data"),
makeOnVerifyFailed("Freshly-signed Data"))
def onLightingCommand(self, prefix, interest, transport, prefixId):
#print datetime.datetime.now()
self.receiveFile.write('{0:f}'.format(self.unix_time_now()) + '\n')
interestName = Name(interest.getName())
#interstname: /ndn/ucla.edu/sculptures/ai_bus/lights/setRGB/%83%0D%84%0B%87%09%89%01%04%8A%01%01%8B%01%01
#d: <pyndn.data.Data object at 0xb64825d0>
print "interstname", interestName.toUri()
d = Data(interest.getName())
# get the command parameters from the name
try:
commandComponent = interest.getName().get(prefix.size())
#print commandComponent.toEscapedString():setRGB
#print "prefix ",prefix.toUri():/ndn/ucla.edu/sculpture/ai_bus/lights
#print "get name",interest.getName().toUri()
commandParams = interest.getName().get(prefix.size()+1)
#print "commandParams ",commandParams:%83%0D%84%0B%87%09%89%01%04%8A%01%01%8B%01%01
lightingCommand = LightCommandMessage()
ProtobufTlv.decode(lightingCommand, commandParams.getValue())
#self.log.info("Command: " + commandComponent.toEscapedString())
requestedColor = lightingCommand.command.pattern.colors[0]
colorStr = str((requestedColor.r, requestedColor.g, requestedColor.b))
#self.log.info("Requested color: " + colorStr)
self.setPayloadColor(0, requestedColor)
self.lightState = not self.lightState
if self.lightState:
print "Off"
else:
print "On"
#print requestedColor
self.sendLightPayload(1)
d.setContent("Gotcha: " + colorStr+ "\n")
except KeyboardInterrupt:
print "key interrupt"
sys.exit(1)
except Exception as e:
print e
d.setContent("Bad command\n")
finally:
d.getMetaInfo().setFinalBlockID(0)
self.signData(d)
encodedData = d.wireEncode()
transport.send(encodedData.toBuffer())
def onInterest(self, prefix, interest, transport, registeredPrefixId):
print 'Interest received: %s' % interest.getName().toUri()
# Make and sign a Data packet.
encoded_data = self.repo.extract_from_repo(interest)
if not encoded_data:
data = Data(interest.getName())
content = "No match found"
data.setContent(content)
self._keyChain.sign(data, self._certificateName)
encoded_data = data.wireEncode().toBuffer()
else:
dumpData(encoded_data)
encoded_data = encoded_data.wireEncode().toBuffer()
transport.send(encoded_data)
print 'sent'
async def checkout():
nonlocal fetcher, result
await fetcher.wait_until_finish()
if not fetcher.success:
return
# TODO W-A-W conflict
timestamp = await self.sync.publish_data(branch)
head_data_name = Name(self.repo_prefix).append("refs")
head_data_name = head_data_name.append(branch).appendTimestamp(timestamp)
head_data = Data(head_data_name)
head_data.content = commit.encode("utf-8")
# TODO Sign data
self.update_branch(branch, timestamp, commit, head_data.wireEncode().toBytes())
result = True
def _onCommandReceived(self, prefix, interest, transport, prefixId):
"""
"""
interestName = interest.getName()
#if it is a certificate name, serve the certificate
foundCert = self._identityStorage.getCertificate(interestName)
if foundCert is not None:
self.log.debug("Serving certificate request")
transport.send(foundCert.wireEncode().buf())
return
afterPrefix = interestName.get(prefix.size()).toEscapedString()
if afterPrefix == "listCommands":
#compose device list
self.log.debug("Received device list request")
response = self._prepareCapabilitiesList(interestName)
self.sendData(response, transport)
elif afterPrefix == "certificateRequest":
#build and sign certificate
self.log.debug("Received certificate request")
self._handleCertificateRequest(interest, transport)
elif afterPrefix == "updateCapabilities":
# needs to be signed!
self.log.debug("Received capabilities update")
def onVerifiedCapabilities(interest):
response = Data(interest.getName())
response.setContent(str(time.time()))
self.sendData(response, transport)
self._updateDeviceCapabilities(interest)
self._keyChain.verifyInterest(interest,
onVerifiedCapabilities, self.verificationFailed)
elif afterPrefix == "addDevice":
self.log.debug("Received pairing request")
def onVerifiedPairingRequest(interest):
response = Data(interest.getName())
encryptedMessage = interest.getName()[len(prefix)+1]
responseCode = self._beginPairing(encryptedMessage)
response.setContent(str(responseCode))
self.sendData(response, transport)
self._keyChain.verifyInterest(interest, onVerifiedPairingRequest, self.verificationFailed)
else:
response = Data(interest.getName())
response.setContent("500")
response.getMetaInfo().setFreshnessPeriod(1000)
transport.send(response.wireEncode().buf())
def onInterest(self, prefix, interest, transport, registeredPrefixId):
if self.delay is not None:
time.sleep(self.delay)
interestName = interest.getName()
data = Data(interestName)
data.setContent("Hello " + interestName.toUri())
data.getMetaInfo().setFreshnessPeriod(3600 * 1000)
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
transport.send(data.wireEncode().toBuffer())
self.nDataServed += 1
print "Replied to: %s (#%d)" % (interestName.toUri(), self.nDataServed)
def onInterest(self, prefix, interest, transport, registeredPrefixId):
interestName = interest.getName()
data = Data(interestName)
data.setContent("Hello, " + interestName.toUri())
# hourMilliseconds = 3600 * 1000
# data.getMetaInfo().setFreshnessPeriod(hourMilliseconds)
#manually adjust the FreshnessPeriod based on the time of producing a data packet
productionTimeGap = 3600 * 1000
data.getMetaInfo().setFreshnessPeriod(productionTimeGap)
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
transport.send(data.wireEncode().toBuffer())
print("Replied to: %s" % interestName.toUri())
def main():
data = Data()
data.wireDecode(TlvData)
dump("Decoded Data:")
dumpData(data)
# Set the content again to clear the cached encoding so we encode again.
data.setContent(data.getContent())
encoding = data.wireEncode()
reDecodedData = Data()
reDecodedData.wireDecode(encoding)
dump("")
dump("Re-decoded Data:")
dumpData(reDecodedData)
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)
keyChain.verifyData(reDecodedData, makeOnVerified("Re-decoded Data"),
makeOnVerifyFailed("Re-decoded Data"))
freshData = Data(Name("/ndn/abc"))
freshData.setContent("SUCCESS!")
freshData.getMetaInfo().setFreshnessPeriod(5000)
freshData.getMetaInfo().setFinalBlockId(Name("/%00%09")[0])
keyChain.sign(freshData, certificateName)
dump("")
dump("Freshly-signed Data:")
dumpData(freshData)
keyChain.verifyData(freshData, makeOnVerified("Freshly-signed Data"),
makeOnVerifyFailed("Freshly-signed Data"))
def handleCommandInterests(self, prefix, interest, transport, prefixId):
# TODO: verification
interestName = interest.getName()
if len(interestName) <= len(prefix)+4:
self.log.info("Bad command interest")
commandName = str(interestName[len(prefix)].getValue())
responseMessage = RepoCommandResponseMessage()
if commandName == 'insert':
commandParams = interestName[len(prefix)+1].getValue()
commandMessage = RepoCommandParameterMessage()
ProtobufTlv.decode(commandMessage, commandParams)
dataName = Name()
fullSchemaName = Name()
for component in commandMessage.command.name.components:
fullSchemaName.append(component)
if component == '_':
continue
dataName.append(component)
self.log.info("Insert request for {}".format(dataName))
responseMessage.response.status_code = 100
processId = self.currentProcessId
self.currentProcessId += 1
responseMessage.response.process_id = processId
else:
responseMessage.response.status_code = 403
responseData = Data(interestName)
responseData.setContent(ProtobufTlv.encode(responseMessage))
transport.send(responseData.wireEncode().buf())
# now send the interest out to the publisher
# TODO: pendingProcesses becomes list of all processes as objects
i = Interest(dataName)
i.setChildSelector(1)
i.setInterestLifetimeMilliseconds(4000)
try:
self.pendingProcesses[processId] = (dataName, 100)
except NameError:
pass # wasn't valid insert request
else:
self._insertFace.expressInterest(i,
self._onInsertionDataReceived,
self._onInsertionDataTimeout)
def sendingFile(self, file_path, interest, face, freshness):
print "Sending File Function"
interestName = interest.getName()
interestNameSize = interestName.size()
try:
SegmentNum = (interestName.get(interestNameSize - 1)).toSegment()
dataName = interestName.getSubName(0, interestNameSize - 1)
# If no segment number is included in the INTEREST, set the segment number as 0 and set the file name to configuration script to be sent
except RuntimeError as e:
SegmentNum = 0
dataName = interestName
# Put file to the Data message
try:
# due to overhead of NDN name and other header values; NDN header overhead + Data packet content = < maxNdnPacketSize
# So Here segment size is hard coded to 5000 KB.
# Class Enumerate publisher is used to split large files into segments and get a required segment ( segment numbers started from 0)
dataSegment, last_segment_num = EnumeratePublisher(
file_path, self.Datamessage_size, SegmentNum).getFileSegment()
print 'SegmentNum:%s last_segment_num: %s' % (SegmentNum,
last_segment_num)
# create the DATA name appending the segment number
dataName = dataName.appendSegment(SegmentNum)
data = Data(dataName)
data.setContent(dataSegment)
# set the final block ID to the last segment number
last_segment = (Name.Component()).fromNumber(last_segment_num)
data.getMetaInfo().setFinalBlockId(last_segment)
#hourMilliseconds = 600 * 1000
data.getMetaInfo().setFreshnessPeriod(freshness)
# currently Data is signed from the Default Identitiy certificate
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
# Sending Data message
face.send(data.wireEncode().toBuffer())
print "Replied to Interest name: %s" % interestName.toUri()
print "Replied with Data name: %s" % dataName.toUri()
except ValueError as err:
print "ERROR: %s" % err
def main():
data = Data()
data.wireDecode(TlvData)
dump("Decoded Data:")
dumpData(data)
# Set the content again to clear the cached encoding so we encode again.
data.setContent(data.getContent())
encoding = data.wireEncode()
reDecodedData = Data()
reDecodedData.wireDecode(encoding)
dump("")
dump("Re-decoded Data:")
dumpData(reDecodedData)
# Set up the KeyChain.
pibImpl = PibMemory()
keyChain = KeyChain(
pibImpl, TpmBackEndMemory(), SelfVerifyPolicyManager(pibImpl))
# This puts the public key in the pibImpl used by the SelfVerifyPolicyManager.
keyChain.importSafeBag(SafeBag
(Name("/testname/KEY/123"),
Blob(DEFAULT_RSA_PRIVATE_KEY_DER, False),
Blob(DEFAULT_RSA_PUBLIC_KEY_DER, False)))
keyChain.verifyData(reDecodedData, makeOnVerified("Re-decoded Data"),
makeOnValidationFailed("Re-decoded Data"))
freshData = Data(Name("/ndn/abc"))
freshData.setContent("SUCCESS!")
freshData.getMetaInfo().setFreshnessPeriod(5000)
freshData.getMetaInfo().setFinalBlockId(Name("/%00%09")[0])
keyChain.sign(freshData)
dump("")
dump("Freshly-signed Data:")
dumpData(freshData)
keyChain.verifyData(freshData, makeOnVerified("Freshly-signed Data"),
makeOnValidationFailed("Freshly-signed Data"))
def _onInterest(self, prefix, interest, transport, registeredPrefixId):
"""
Send back a Chat Data Packet which contains the user's message.
"""
content = chatbuf_pb2.ChatMessage()
sequenceNo = int(
interest.getName().get(self._chatPrefix.size() + 1).toEscapedString())
gotContent = False
for i in range(len(self._messageCache) - 1, -1, -1):
message = self._messageCache[i]
if message.sequenceNo == sequenceNo:
if message.messageType != chatbuf_pb2.ChatMessage.CHAT:
# Use setattr because "from" is a reserved keyword.
setattr(content, "from", self._screenName)
content.to = self._chatRoom
content.type = message.messageType
content.timestamp = int(round(message.time / 1000.0))
else:
setattr(content, "from", self._screenName)
content.to = self._chatRoom
content.type = message.messageType
content.data = message.message
content.timestamp = int(round(message.time / 1000.0))
gotContent = True
break
if gotContent:
# TODO: Check if this works in Python 3.
array = content.SerializeToString()
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
def insert_fake_data():
i = 0
while i < 10:
i += 1
fake_data = Data(
Name('/ndn/' + random_string() + '/' + random_string()))
fake_data.setContent(random_string(100))
try:
controlCenterDB.put(fake_data.name.__str__(),
fake_data.wireEncode().toBytes())
except:
return connectivity_error()
return render_template(
'message.html',
title='Success',
heading='Success',
message='Ten fake Data packets have been inserted into the repo',
time=datetime.datetime.now(),
badge_tag='success',
alert_tag='success',
badge_text='OK')
async def checkout():
nonlocal fetcher, result
await fetcher.wait_until_finish()
if not fetcher.success:
return
# TODO W-A-W conflict
timestamp = await self.sync.publish_data(branch)
self.branches[branch].timestamp = timestamp
self.branches[branch].head = commit
# Fix the database
head_data_name = Name(self.repo_prefix).append("refs")
head_data_name = head_data_name.append(branch).appendTimestamp(
timestamp)
head_data = Data(head_data_name)
head_data.content = commit.encode("utf-8")
# TODO Sign data
self.branches[branch].head_data = head_data.wireEncode().toBytes()
self.repo_db.put(branch, pickle.dumps(self.branches[branch]))
self.branches[branch].head_data = b""
result = True
def main():
data = Data()
data.wireDecode(TlvData)
dump("Decoded Data:")
dumpData(data)
# Set the content again to clear the cached encoding so we encode again.
data.setContent(data.getContent())
encoding = data.wireEncode()
reDecodedData = Data()
reDecodedData.wireDecode(encoding)
dump("")
dump("Re-decoded Data:")
dumpData(reDecodedData)
# 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()))
validator.validate(reDecodedData, makeSuccessCallback("Re-decoded Data"),
makeFailureCallback("Re-decoded Data"))
freshData = Data(Name("/ndn/abc"))
freshData.setContent("SUCCESS!")
freshData.getMetaInfo().setFreshnessPeriod(5000)
freshData.getMetaInfo().setFinalBlockId(Name("/%00%09")[0])
keyChain.sign(freshData)
dump("")
dump("Freshly-signed Data:")
dumpData(freshData)
validator.validate(freshData, makeSuccessCallback("Freshly-signed Data"),
makeFailureCallback("Freshly-signed Data"))
def _onConfigurationReceived(self, prefix, interest, transport, prefixId):
# the interest we get here is signed by HMAC, let's verify it
self.tempPrefixId = prefixId # didn't get it from register because of the event loop
interestName = interest.getName()
replyData = Data(interestName)
if len(interestName) == len(prefix):
# this is a discovery request. Check the exclude to see if we should
# return our serial
serial = self.getSerial()
serialComponent = Name.Component(serial)
if not interest.getExclude().matches(serialComponent):
replyData.setContent(serial)
self.sendData(replyData, transport,
False) # no point in signing
elif (self._hmacHandler.verifyInterest(interest)):
# we have a match! decode the network parameters
configComponent = interest.getName()[len(prefix) + 1]
replyData.setContent('200')
self._hmacHandler.signData(replyData, keyName=self.prefix)
transport.send(replyData.wireEncode().buf())
environmentConfig = DeviceConfigurationMessage()
ProtobufTlv.decode(environmentConfig, configComponent.getValue())
networkPrefix = self._extractNameFromField(
environmentConfig.configuration.networkPrefix)
controllerName = self._extractNameFromField(
environmentConfig.configuration.controllerName)
controllerName = Name(networkPrefix).append(controllerName)
self._policyManager.setEnvironmentPrefix(networkPrefix)
self._policyManager.setTrustRootIdentity(controllerName)
self.deviceSuffix = self._extractNameFromField(
environmentConfig.configuration.deviceSuffix)
self._configureIdentity = Name(networkPrefix).append(
self.deviceSuffix)
self._sendCertificateRequest(self._configureIdentity)
def main():
data = Data()
data.wireDecode(TlvData)
dump("Decoded Data:")
dumpData(data)
# Set the content again to clear the cached encoding so we encode again.
data.setContent(data.getContent())
encoding = data.wireEncode()
reDecodedData = Data()
reDecodedData.wireDecode(encoding)
dump("")
dump("Re-decoded Data:")
dumpData(reDecodedData)
# 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()))
validator.validate(reDecodedData, makeSuccessCallback("Re-decoded Data"),
makeFailureCallback("Re-decoded Data"))
freshData = Data(Name("/ndn/abc"))
freshData.setContent("SUCCESS!")
freshData.getMetaInfo().setFreshnessPeriod(5000)
freshData.getMetaInfo().setFinalBlockId(Name("/%00%09")[0])
keyChain.sign(freshData)
dump("")
dump("Freshly-signed Data:")
dumpData(freshData)
validator.validate(freshData, makeSuccessCallback("Freshly-signed Data"),
makeFailureCallback("Freshly-signed Data"))
def onInterest(self, prefix, interest, transport, registeredPrefixId):
interestName = interest.getName()
data = Data(interestName)
print "Downloading : %s" % interestName.toUri()
min_char = self.maxNdnPacketSize - 400
max_char = self.maxNdnPacketSize - 400
allchar = string.ascii_letters + string.punctuation + string.digits
rint = randint(min_char, max_char)
cont = "".join(choice(allchar) for x in range(rint))
data.setContent(cont)
time.sleep(2)
hourMilliseconds = 3600 * 1000
data.getMetaInfo().setFreshnessPeriod(hourMilliseconds)
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
transport.send(data.wireEncode().toBuffer())
print "Replied to: %s" % interestName.toUri()
def onConsumeComplete(self, data, result, producedDataName, outerDataName):
print "Consume complete for data name: " + data.getName().toUri()
if producedDataName in self._tasks:
self._tasks[producedDataName]["current_num"] += 1
self._tasks[producedDataName]["dataset"].append(result)
if self._tasks[producedDataName]["current_num"] == self._tasks[producedDataName]["cap_num"]:
maxLng = -1000
minLng = 1000
maxLat = -1000
minLat = 1000
for item in self._tasks[producedDataName]["dataset"]:
dataObject = json.loads(str(item))
if dataObject["lat"] > maxLat:
maxLat = dataObject["lat"]
if dataObject["lat"] < minLat:
minLat = dataObject["lat"]
if dataObject["lng"] > maxLng:
maxLng = dataObject["lng"]
if dataObject["lng"] < minLng:
minLng = dataObject["lng"]
if not self._encryptResult:
innerData = Data(Name(str(producedDataName)))
innerData.setContent(json.dumps({"minLat": minLat, "maxLat": maxLat, "minLng": minLng, "maxLng": maxLng}))
#self.keyChain.sign(innerData)
outerData = Data(Name(str(outerDataName)))
outerData.setContent(innerData.wireEncode())
#self.keyChain.sign(outerData)
self.memoryContentCache.add(outerData)
self.initiateContentStoreInsertion("/ndn/edu/ucla/remap/ndnfit/repo", outerData)
print "Calculation completed, put data to repo"
else:
print "Encrypt result is not implemented"
def onInterest(self, prefix, interest, transport, registeredPrefixId):
global stopServing
if stopServing:
print "refusing to serve " + interest.getName().toUri()
self.consoleThread.join()
print "join'd thread"
return
if self.delay is not None:
time.sleep(self.delay)
interestName = interest.getName()
data = Data(interestName)
data.setContent("Hello " + interestName.toUri())
data.getMetaInfo().setFreshnessPeriod(3600 * 1000)
self.keyChain.sign(data, self.keyChain.getDefaultCertificateName())
transport.send(data.wireEncode().toBuffer())
self.nDataServed += 1
print "Replied to: %s (#%d)" % (interestName.toUri(), self.nDataServed)
def benchmarkEncodeDataSeconds(nIterations, useComplex, useCrypto):
"""
Loop to encode a data packet nIterations times.
:param int nIterations: The number of iterations.
:param bool useComplex: If true, use a large name, large content and all
fields. If false, use a small name, small content and only required
fields.
:param bool useCrypto: If true, sign the data packet. If false, use a blank
signature.
:return: A tuple (duration, encoding) where duration is the number of
seconds for all iterations and encoding is the wire encoding.
:rtype: (float, Blob)
"""
if useComplex:
# Use a large name and content.
name = Name(
"/ndn/ucla.edu/apps/lwndn-test/numbers.txt/%FD%05%05%E8%0C%CE%1D/%00")
contentString = ""
count = 1
contentString += "%d" % count
count += 1
while len(contentString) < 1115:
contentString += " %d" % count
count += 1
content = Name.fromEscapedString(contentString)
else:
# Use a small name and content.
name = Name("/test")
content = Name.fromEscapedString("abc")
finalBlockId = Name("/%00")[0]
# Initialize the private key storage in case useCrypto is true.
identityStorage = MemoryIdentityStorage()
privateKeyStorage = MemoryPrivateKeyStorage()
keyChain = KeyChain(IdentityManager(identityStorage, privateKeyStorage),
SelfVerifyPolicyManager(identityStorage))
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)
# Set up signatureBits in case useCrypto is false.
signatureBits = Blob(bytearray(256))
emptyBlob = Blob([])
start = getNowSeconds()
for i in range(nIterations):
data = Data(name)
data.setContent(content)
if useComplex:
data.getMetaInfo().setFreshnessPeriod(1000)
data.getMetaInfo().setFinalBlockId(finalBlockId)
if useCrypto:
# This sets the signature fields.
keyChain.sign(data, certificateName)
else:
# Imitate IdentityManager.signByCertificate to set up the signature
# fields, but don't sign.
sha256Signature = data.getSignature()
keyLocator = sha256Signature.getKeyLocator()
keyLocator.setType(KeyLocatorType.KEYNAME)
keyLocator.setKeyName(certificateName)
sha256Signature.setSignature(signatureBits)
encoding = data.wireEncode()
finish = getNowSeconds()
return (finish - start, encoding)
from pyndn import Data
from pyndn.security import KeyChain
import sys
from RepoSocketPublisher import RepoSocketPublisher
publisher = RepoSocketPublisher(12345)
keyChain = KeyChain()
max_packets = 50000
total_size = 0
n = Name("/test").append(str(0))
d = Data(n)
d.setContent("this is a test.")
d.getMetaInfo().setFreshnessPeriod(4000)
keyChain.sign(d, keyChain.getDefaultCertificateName())
for i in range(0, max_packets + 1):
n = Name("/test").append(str(i))
d.setName(n)
if i % 100000 == 0:
print str(i)
if i == max_packets:
print str(total_size)
total_size = total_size + d.wireEncode().size()
publisher.put(d)